Pikunas, J. (1976). Human development, an emergent science (3d ed.). McGraw-Hill.
Chicago Style aipamenaPikunas, Justin. Human Development, an Emergent Science. 3d ed. New York: McGraw-Hill, 1976.
MLA aipamenaPikunas, Justin. Human Development, an Emergent Science. 3d ed. McGraw-Hill, 1976.
Kontuz: berrikusi erreferentzia hauek erabili aurretik.