Cita APA (7a ed.)

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

Cita Chicago Style (17a ed.)

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

Cita MLA (9a ed.)

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