APA-referens (7:e uppl.)

Pikunas, J. (1976). Human development, an emergent science (3d ed.). McGraw-Hill.

Chicago-referens (17:e uppl.)

Pikunas, Justin. Human Development, an Emergent Science. 3d ed. New York: McGraw-Hill, 1976.

MLA-referens (8:e uppl.)

Pikunas, Justin. Human Development, an Emergent Science. 3d ed. McGraw-Hill, 1976.