APA (7e ed.) Bronvermelding

Turnbull, A., & Turnbull, R. (1999). Exceptional lives: Special education in today's schools (2nd ed.). Merrill.

Chicago (17e ed.) Bronvermelding

Turnbull, Ann, en Rud Turnbull. Exceptional Lives: Special Education in Today's Schools. 2nd ed. New Jersey: Merrill, 1999.

MLA (9e ed.) Bronvermelding

Turnbull, Ann, en Rud Turnbull. Exceptional Lives: Special Education in Today's Schools. 2nd ed. Merrill, 1999.