A method or system used to represent the surface of the Earth or of a celestial sphere on a plane.
Convention Sources identifies standard rules or guidelines for describing bibliographic resources, commonly called cataloging rules, and assigns a code to each source. The purpose of this list is to enable the source of description guidelines in metadata records to be indicated by a code.
This list contains Resource Description and Access (RDA) terms and corresponding three-character lower case alphabetic codes for RDA Content types.
The MARC Code List for Geographic Areas consists of a list of geographic areas and their associated one to seven-character codes.
The MARC Code List for Countries contains a list of places and their associated two- or three-character lowercase alphabetic codes.
