Cita APA (7th ed.)
Heward, W. L. (2003). Exceptional children: An introduction to special education (7th ed.). Merrill.
Cita Chicago (17th ed.)
Heward, William L. Exceptional Children: An Introduction to Special Education. 7th ed. Upper Saddle River, N.J.: Merrill, 2003.
Cita MLA (9th ed.)
Heward, William L. Exceptional Children: An Introduction to Special Education. 7th ed. Merrill, 2003.
Atenció: Aquestes cites poden no estar 100% correctes.