Cita APA (7th ed.)

Hallahan, D. P., & Kauffman, J. (1997). Exceptional learners: Introduction to special education (7th ed.). Allyn and Bacon.

Cita Chicago (17th ed.)

Hallahan, Daniel P., i James Kauffman. Exceptional Learners: Introduction to Special Education. 7th ed. Boston: Allyn and Bacon, 1997.

Cita MLA (9th ed.)

Hallahan, Daniel P., i James Kauffman. Exceptional Learners: Introduction to Special Education. 7th ed. Allyn and Bacon, 1997.