In 1974 appeared the revision of Chapter 6 (which was then published as a sepprate monograph) of the Anglo-American Cataloging Rules (= AACR). The revision is the sum result of the incorporation of the many changes put forth in the International Standard Bibliographic Description for Monographic Publications (= ISBD (M)) including the prescribed punctuation and also the reorganization and and rearrangement, in much clearer and more accurate terms, of the previous 1967 AACR rules. The purpose of the present study is then to point out the major differences between the 1967 AACR rules and the revised 1974 AA CR rules (for Chapter 6) for the benefit of the cataloger in her actual task of descriptive cataloging. The article consists of three parts: (1) an examination of the Appendices, I, III, and V of the revised rules, which are necessary for understanding the revision of Chapter 6; (2) comparative analysis of the Seven Areas of the revised General rules commonly used in descritpive cataloging; and (3) comparative analysis of Special rules.