Cita APA (7th ed.)
Perkinson, R. R. (2008). Chemical dependency counseling: A practical guide (3d ed.). Sage Publications.
Cita Chicago (17th ed.)
Perkinson, Robert R. Chemical Dependency Counseling: A Practical Guide. 3d ed. Thousand Oaks, Calif.: Sage Publications, 2008.
Cita MLA (9th ed.)
Perkinson, Robert R. Chemical Dependency Counseling: A Practical Guide. 3d ed. Sage Publications, 2008.
Atenció: Aquestes cites poden no estar 100% correctes.