CATALOGUING CODES AND THEIR YEAR OF APPEARANCE

BRITISH MUSEUM CODE -- 1841
RULES FOR DICTIONARY CATALOGUE--1876
PRUSSION INSTRUCTION--1899
ANGLO-AMERICAN CODE(AAC)--1908
VATICAN CODE(VC)--1927
CLASSIFIED CATALOGUE CODE(CCC)--1934
AMERICAN LIBRARY ASSOCIATION CODE(ALA)--1949
ANGLO-AMERICAN CATALOGUING RULES-I(AACR-I)--1967
ANGLO-AMERICAN CATALOGUING RULES-II(AACR-II)--1978
ANGLO-AMERICAN CATALOGUING RULES-II REVISED -- 1988