Gaya APA

Billingham, K, A. (1982). Developmental Psychology For The Health Care Professions (Part 1 - Prenatal Through Adolescent Development). Colorado: Westview Press.

Gaya MLA

Billingham, Katherine, A.. "Developmental Psychology For The Health Care Professions". Part 1 - Prenatal Through Adolescent Development Colorado: Westview Press, 1982. Text.