Lua APA (7ú heag.)
Watkins, T. R., Barrett, M. C., & Lewellen, A. (2001). Dual diagnosis: An integrated approach to treatment. Sage Publications.
Lua i Stíl Chicago (17ú heag.)
Watkins, Ted R., Marjie Crow Barrett, agus Ara Lewellen. Dual Diagnosis: An Integrated Approach to Treatment. Thousand Oaks, Calif.: Sage Publications, 2001.
Lua MLA (9ú heag.)
Watkins, Ted R., et al. Dual Diagnosis: An Integrated Approach to Treatment. Sage Publications, 2001.
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