Citazione Stile APA (7a Edizione)

Hurlock, E. B. (1980). Developmental psychology: A life-span approach (5th ed.). McGraw-Hill.

Citazione stile Chigago Style (17a edizione)

Hurlock, Elizabeth Bergner. Developmental Psychology: A Life-span Approach. 5th ed. New York: McGraw-Hill, 1980.

Citatione MLA (9a ed.)

Hurlock, Elizabeth Bergner. Developmental Psychology: A Life-span Approach. 5th ed. McGraw-Hill, 1980.