Cita APA (7th ed.)

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

Cita Chicago (17th ed.)

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

Cita MLA (8th ed.)

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