Klopfer, Peter H. An introduction to animal behavior : ethology's first century / Peter H. Klopfer; Jack P. Hailman - Englewood Cliffs : Prentice-Hall, c 1967. - xii, 297 p. : ill. ; 24 cm. Includes Index 339 339 Subjects--Topical Terms: Animal behavior. Dewey Class. No.: 591.51 / K695i