Raven, J. C. (1966). Psychological principles appropriate to social and clinical problems. H. K. Lewis.
Lua i Stíl Chicago (17ú heag.)Raven, John C. Psychological Principles Appropriate to Social and Clinical Problems. London: H. K. Lewis, 1966.
Lua MLA (9ú heag.)Raven, John C. Psychological Principles Appropriate to Social and Clinical Problems. H. K. Lewis, 1966.
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