Bee, Helen L., 1939- Lifespan development / Helen Bee. - 2nd ed. - New York : Longman, c1998. - xxxii, 620 p. : ill. (chiefly col.) ; 28 cm. ISBN: 032101121X (hardcover) LCCN: 97005362 LC Class. No.: BF 713 .B435 1998 / .B435 1998 Dewey Class. No.: 155