Não informado. (1976). Interdisciplinary perspectives. Association for General and Liberal Studies.
Citace podle Chicago (17th ed.)Não informado. Interdisciplinary Perspectives. Minneapolis, Minn: Association for General and Liberal Studies, 1976.
Citace podle MLA (8th ed.)Não informado. Interdisciplinary Perspectives. Association for General and Liberal Studies, 1976.
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