Lehnus Donald J Comparison of Panizzi's 91 rules and the AACR of 1967 Lehnus Donald J - Illinois 1972 - University of Illinois graduate school of Library Science: Occasional papers; 105 . Standard No.: 4,883 Source: Textual Subjects--Topical Terms: LIBRARY SCIENCE Dewey Class. No.: 2:55N670cM41, qL2