Hurlock, E. B. (1980). Developmental psychology: A life-span approach (5th ed.). JMC Press.
Chicago Style (17th ed.) CitationHurlock, Elizabeth Bergner. Developmental Psychology: A Life-span Approach. 5th ed. Quezon City: JMC Press, 1980.
MLA (9th ed.) CitationHurlock, Elizabeth Bergner. Developmental Psychology: A Life-span Approach. 5th ed. JMC Press, 1980.
Advarsel: Disse citationer er muligvist ikke 100% nøjagtige.