Cook, Laurence Martin. Coefficients of natural selection/ by L. M. Cook. - London, : Hutchinson, , 1971. - 207 p. illus. - Hutchinson university library: biological sciences . Bibliography: p. [192]-201. ISBN: 0091041902 Subjects--Topical Terms: Population genetics.Natural selection. Dewey Class. No.: 576.82 COO/C