Cita APA

Pikunas, J., & Pikunas, J. (1976). Human development an emergent science (3. edition.). New York, New York: McGraw-Hill Book.

Citación estilo Chicago

Pikunas, Justin, y Justin Pikunas. Human Development an Emergent Science. 3. edition. New York, New York: McGraw-Hill Book, 1976.

Cita MLA

Pikunas, Justin, y Justin Pikunas. Human Development an Emergent Science. 3. edition. New York, New York: McGraw-Hill Book, 1976.