Não informado. (1984). Higher Education Abstracts. Claremont Graduate School.
Chicago-referens (17:e uppl.)Não informado. Higher Education Abstracts. Claremont, Calif: Claremont Graduate School, 1984.
MLA-referens (8:e uppl.)Não informado. Higher Education Abstracts. Claremont Graduate School, 1984.
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