H. M. Boudin

Contingency contracting as a therapeutic tool in the deceleration of amphetamine use

H. M. Boudin, 1972 .

Contingency contracting with drug abusers in the natural environment.

H. M. Boudin, V. E. Valentine, R. D. Inghram, 1977, The International journal of the addictions.

Contingency Contracting with Drug Abusers in the Natural Environment

H. M. Boudin, V. E. Valentine, R. D. Inghram, 1977 .