Cita APA (7th ed.)

Heward, W. (2000). Exceptional children: An introduction to special education (6th.ed.). Merrill.

Cita Chicago (17th ed.)

Heward, William. Exceptional Children: An Introduction to Special Education. 6th.ed. New Jersey: Merrill, 2000.

Cita MLA (9th ed.)

Heward, William. Exceptional Children: An Introduction to Special Education. 6th.ed. Merrill, 2000.