Pfeiffer, John E. The emergence of man / John E. Pfeiffer. - 2nd edition. - New York : Harper & Row Publishers, ©1972. - xxii, 550 pages : illustrations ; 23 cm. Includes bibliography and index. ISBN: 060451955 Subjects--Topical Terms: Human evolution. Dewey Class. No.: DC 599.938 / P47 1972