Cita APA

Snell, M. E. (1983). Systematic instruction of the moderately and severely handicapped (2nd ed.). Merrill.

Citación estilo Chicago

Snell, Martha E. Systematic Instruction of the Moderately and Severely Handicapped. 2nd ed. Columbus, Ohio: Merrill, 1983.

Cita MLA

Snell, Martha E. Systematic Instruction of the Moderately and Severely Handicapped. 2nd ed. Merrill, 1983.