Cita APA (7th ed.)

Pikunas, J., & O' Neil, R. p. (1969). Human development: A science of growth. McGraw-Hill; Tokyo: Kogakusha.

Cita Chicago (17th ed.)

Pikunas, Justin, i Rovert p. O' Neil. Human Development: A Science of Growth. New York: McGraw-Hill; Tokyo: Kogakusha, 1969.

Cita MLA (9th ed.)

Pikunas, Justin, i Rovert p. O' Neil. Human Development: A Science of Growth. McGraw-Hill; Tokyo: Kogakusha, 1969.

Atenció: Aquestes cites poden no estar 100% correctes.