Gaya APA

Cavanaugh, R, V, K, A, J, C. (2010). Human development: a life-span view (Fifth Edition). United State of America: Wadsworth, Cengage Learning.

Gaya MLA

Cavanaugh, Robert, V., Kail, And, John, C.. "Human development: a life-span view". Fifth Edition United State of America: Wadsworth, Cengage Learning, 2010. Electronic Resource.