APA-viite (7. p.)

Snell, M. E. (1993). Instruction of students with severe disabilities (4th ed.). Merrill.

Chicago-viite (17. p.)

Snell, Martha E. Instruction of Students with Severe Disabilities. 4th ed. New York: Merrill, 1993.

MLA-viite (9. p.)

Snell, Martha E. Instruction of Students with Severe Disabilities. 4th ed. Merrill, 1993.