Owens, K. (1993). The world of the child. Merrill.
Cita Chicago (17th ed.)Owens, Karen. The World of the Child. New York: Merrill, 1993.
Cita MLA (9th ed.)Owens, Karen. The World of the Child. Merrill, 1993.
Atenció: Aquestes cites poden no estar 100% correctes.