Richards, John. Elements of organic chemistry / [by] John H. Richards, Donald J. Cram [and] George S. Hammond. - New York : McGraw-Hill, 1967. - xi, 444 p. : ill (somet col). ; 24 cm. - McGraw-Hill series in undergraduate chemistry. . Includes index. Includes bibliographical references. Subjects--Topical Terms: Chemistry, Organic.