Gaya APA

Shaffer, D, R., kipp, K. (2014). Developmental Psychology Childhood and Adolescence ED-9 (ED-9). USA: USA : Wadsworth Cengage Learning, 2014.

Gaya MLA

Shaffer, David, R.., kipp, Katherine. "Developmental Psychology Childhood and Adolescence ED-9". ED-9 USA: USA : Wadsworth Cengage Learning, 2014, 2014. Text.