APA citiranje

Petry, N. M., Weinstock, J., & Alessi, S. M. (2011). A randomized trial of contingency management delivered in the context of group counseling.

Citação norma Chicago

Petry, Nancy M., Jeremiah Weinstock, and Sheila M. Alessi. A Randomized Trial of Contingency Management Delivered in the Context of Group Counseling. 2011.

MLA citiranje

Petry, Nancy M., Jeremiah Weinstock, and Sheila M. Alessi. A Randomized Trial of Contingency Management Delivered in the Context of Group Counseling. 2011.