The process of evolution / by Paul R. Ehrlich, Richard W. Holm and Dennis R. Parnell. Ehrlich, Paul R. Holm, Richard W., joint author. Parnell, Dennis R., joint author. Evolution (Biology) Genetics. Evolution. Genetics. 575 EHP Includes bibliographies. New York : McGraw-Hill, 1974. 1974. 1974 Text xv, 378 p. eng McGraw-Hill series in population biology