Citazione Stile APA (7a Edizione)

Perkinson, R. R. (1997). Chemical dependency counseling: A practical guide. Sage Publications.

Citazione stile Chigago Style (17a edizione)

Perkinson, Robert R. Chemical Dependency Counseling: A Practical Guide. Thousand Oaks, Calif: Sage Publications, 1997.

Citatione MLA (9a ed.)

Perkinson, Robert R. Chemical Dependency Counseling: A Practical Guide. Sage Publications, 1997.