World Health Organization. Scientific Group on the Treatment of Psychiatric Disorders. (1991). Evaluation of methods for the treatment of mental disorders. World Health Organization.
Παραπομπή σε μορφή Chicago (17η εκδ.)World Health Organization. Scientific Group on the Treatment of Psychiatric Disorders. Evaluation of Methods for the Treatment of Mental Disorders. Geneva: World Health Organization, 1991.
Παραπομπή σε μορφή MLA (8th εκδ.)World Health Organization. Scientific Group on the Treatment of Psychiatric Disorders. Evaluation of Methods for the Treatment of Mental Disorders. World Health Organization, 1991.
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