FULL FORM OF AACR 1 (1967)
anglo- American cataloguing rule 1(AACR – 1) is a detailed set of standardized rule for cataloguing various types of library materials published in 1967 into various -a North American text and British text under the initiative of American Library Association(ALA), Library Association(LA) and Canadian Library Association (CLA)
सन 1961 में the national Conference on cataloguing principle का आयोजन किया गया जिसमें choice and form of heading in author/title catalogues से संबंधित बारह सिद्धांतों को अपनाया गया जो Paris principle के नाम से जाना गया |