Lefton, Lester A., 1946- Psychology / Lester A. Lefton. - 7th ed. - Boston, Mass. : Allyn and Bacon, c2000 - xxviii, 728 p. : ill. (some col.) ; 29 cm. ISBN: 0205285295 LCCN: 99029523 LC Class. No.: BF121 .L424 2000 / .L424 2000 Dewey Class. No.: 150