APA (7th ed.) Citation

Ayllon, T. 1., & Azrin, N. 1. (1968). The token economy; a motivational system for therapy and rehabilitation. Appleton-Century-Crofts.

Chicago Style (17th ed.) Citation

Ayllon, Teodoro 1929, and Nathan 1930 Azrin. The Token Economy; a Motivational System for Therapy and Rehabilitation. New York: Appleton-Century-Crofts, 1968.

MLA (9th ed.) Citation

Ayllon, Teodoro 1929, and Nathan 1930 Azrin. The Token Economy; a Motivational System for Therapy and Rehabilitation. Appleton-Century-Crofts, 1968.