Silver, Rac . Hormones and reproductive behaviour / Rac Silver and Harvey H.Feder. - San Francisco : W H Freeman , 1979. - viii,181p. : ill.,figs.,graph,tables ; 35cm . Includes bibliographical references and index ISBN: 0716710935 NULL Subjects--Index Terms: SEXUAL BEHAVIOUR IN ANIMALS Dewey Class. No.: 591.56 / SIL/H