Παραπομπή APA

Ayllon, T. (1968). Token Economy: A Motivational System For Therapy and Rehabilitation. Appleton-Century-Crofts.

Παραπομπή Chicago Style

Ayllon, Teodore. Token Economy: A Motivational System For Therapy and Rehabilitation. New York: Appleton-Century-Crofts, 1968.

Παραπομπή MLA

Ayllon, Teodore. Token Economy: A Motivational System For Therapy and Rehabilitation. Appleton-Century-Crofts, 1968.