Cita APA (7a ed.)

Higgins, S. T., Silverman, K., & Heil, S. H. (2008). Contingency management in substance abuse treatment. Guilford Press.

Cita Chicago Style (17a ed.)

Higgins, Stephen T., Kenneth Silverman, y Sarah H. Heil. Contingency Management in Substance Abuse Treatment. New York: Guilford Press, 2008.

Cita MLA (9a ed.)

Higgins, Stephen T., et al. Contingency Management in Substance Abuse Treatment. Guilford Press, 2008.