Shaffer, D. R., & Kipp, K. [ca. 2010]. Developmental psychology : childhood and adolescence (8. ed.) [Book]. Belmont, CA: Wadsworth Cengage Learning.

SHAFFER, David R. und KIPP, Katherine, 2010. Developmental psychology : childhood and adolescence. 8. ed. Belmont, CA: Wadsworth Cengage Learning. ISBN 9780495556923.

Shaffer, D. R., und K. Kipp. Developmental psychology : childhood and adolescence. 8. ed., book, Wadsworth Cengage Learning, 2010.

Shaffer, David R./Kipp, Katherine: Developmental psychology : childhood and adolescence, 8. ed. Aufl. Belmont, CA 2010.

Shaffer, D.R. und Kipp, K. (2010), Developmental psychology : childhood and adolescence, 8. ed., Bd. , Wadsworth Cengage Learning, Belmont, CA.