Não informado. (1972). Evaluation. Minneapolis Medical Research Foundation, Program Evaluation Project.
शिकागो शैली (17वां संस्करण) प्रशस्ति पत्रNão informado. Evaluation. Minneapolis, Minn: Minneapolis Medical Research Foundation, Program Evaluation Project, 1972.
एमएलए (8वां संस्करण) प्रशस्ति पत्रNão informado. Evaluation. Minneapolis Medical Research Foundation, Program Evaluation Project, 1972.
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