Bibliography
ORC uses out of copyright and open access cataloging resources as the basis for developing its rules.
- ALA 1908 rules = Catalog Rules: Author and Title Entries. Chicago: ALA, 1908
- BIBFRAME 2.2.0 vocabulary
- IFLA Element Sets
- LC 1949 rules = Rules for Descriptive Cataloging in the Library of Congress. Washington: Library of Congress, Descriptive Cataloging Division, 1949
- LCRI = Library of Congress Rule Interpretations