A great subfield: Extremely sphere incorporate numerous relevant bits of data. Every type of information in field is named a beneficial subfield , and each subfield is preceded of the a good delimiter-subfield password consolidation . Fields 001 owing to 009 haven’t any subfields.
Such as, industry to have an individual name supposed is sold with good subfield for your own title, numeration, headings and you will times associated with the term, certainly one of several others.
A good subfield password: Subfield codes is that lowercase letter (from time to time several) preceded of the a good delimiter. A delimiter are a characteristics used to separate subfields. For every single subfield password implies what sort of study observe they. (Each profession from the MARC 21 power style, the fresh new MARC 21 papers directories and you may relates to the good subfield codes.)
Regarding the a lot more than example, the new subfield requirements was $a private name, $b having numeration, $c to have titles and other terminology on the a reputation, and you can $d getting times in the a name.
A good delimiter: Other software programs use more letters so you can depict the new delimiter with the new monitor or for the printouts. Examples is actually a dual dagger ( ), an enthusiastic «at signal» (), a dollar indication ($), a keen underline ( _ ), or the visual symbol » «. Within this publication the newest dollars indication ($) is used just like the delimiter part of the subfield code.
step 1. The fresh authority list stuff.
An expert list is good for for every signed up sorts of an effective heading. To own names, one of the most popular power data is the Library out of Congress Name Authority Document (otherwise LCNAF). One to file is utilized contained in this document getting instances. The entire document is present regarding the Cataloging Shipping Solution (otherwise Cds) or may be wanted online within: To have subject areas or geographical names, the most used topic expert file is the LCSH. It’s provided by Dvds in print and you can digital form. There are many other subject supposed listing, like the Sears Variety of Topic Headings and also the Art and you will Buildings Thesaurus . The form of a topic going is always to meets you to during these lists or go after their legislation to possess framework.
Most of the titles are among the following the sizes: brands , name/identity combinations , uniform headings , otherwise subjects . Types of label headings are:
A name/name going include one another a reputation and you can a name from a-work. The name piece consists of your own, corporate, appointment, otherwise legislation title. This new label section gets the title whereby a product or service otherwise a series is usually to be known to own cataloging objectives. It’s especially useful for classic works which were typed significantly less than different headings throughout the years. A typical example of a reputation/label heading try:
What’s a good MARC Power Number
An interest supposed is one sexy turkmenistani girls identity, statement, or a team of terms and conditions. The new tag on the topic is dependant on the original identity otherwise keywords regarding going — procedure, genre/means, geographic, chronological, personal title, business term, fulfilling name, otherwise title. One other terms on the going have been in specific subfields you to are known as subdivisions.
MARC 21 power facts contain 2 kinds of get across records one both lead a user regarding an unauthorized going to an authorized heading (these are named «get a hold of recommendations» and use 4XX labels) or from a single signed up heading to a different (speaking of called «discover and additionally sources» and employ 5XX tags). Genuine mix records usually are not sent explicitly inside the authority suggestions, yet not. Alternatively, variation function and associated headings is actually «traced» regarding the expert checklist towards licensed function. Tracing get across sources unlike and work out separate authority info to own references enables successful and exact monitor regarding expert guidance by the catalogs — and the pages understand the information throughout the mode which is suitable for all of them. Cross reference screens may then become generated by systems and that blend brand new items in good tracing source field in addition to 1XX going world of accurate documentation.