Principles of organic chemistry / James English, Harold G. Cassidy [and] Richard L. Baird. English, James, 1912- Cassidy, Harold Gomes, joint author. Baird, Richard L., 1931- joint author. Chemistry, Organic. QD253 .E52 1971 547 ENP Includes bibliographical references. New York : McGraw-Hill, 1971. 1971. 1971 Text xiii, 530 p. : eng