Kelly, Mahlon G. Biology : evolution and adaptation to the environment / Mahlon G. Kelly [and] John C. McGrath - Boston : Houghton Mifflin, c1975 - xii, 558 p. : ill. (some col.) ; 26 cm. Includes bibliographical references and index ISBN: Rs. 186.00 Subjects--Topical Terms: BiologyEvolution (Biology)Adaptation (Biology)Ecology Dewey Class. No.: 574.5