Johnson, Willis Hugh, 1902- Essentials of biology / Johnson, Willis Hugh, 1902- - 2nd - viii, 558 p. ill. ; 25 cm. First ed. (1969) by W. H. Johnson, L. E. DeLanney and T. A. Cole.Includes bibliographies. ISBN: 0030083966 Subjects--Topical Terms: Biology Dewey Class. No.: 570