Easson, W. M. (1974). Psychiatry Examination Review. Arco publishing company.
Lua i Stíl Chicago (17ú heag.)Easson, William M. Psychiatry Examination Review. New York: Arco publishing company, 1974.
Lua MLA (9ú heag.)Easson, William M. Psychiatry Examination Review. Arco publishing company, 1974.
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