Não informado. (1978). Current Bibliography Directory of the Arts and Sciences. Institute for Scientific Information.
Chicago-referens (17:e uppl.)Não informado. Current Bibliography Directory of the Arts and Sciences. Philadelphia, Pa: Institute for Scientific Information, 1978.
MLA-referens (8:e uppl.)Não informado. Current Bibliography Directory of the Arts and Sciences. Institute for Scientific Information, 1978.
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