Não informado. (1958). International journal of health education. International Union for Health Education.
शिकागो शैली (17वां संस्करण) प्रशस्ति पत्रNão informado. International Journal of Health Education. Geneva, Suíça: International Union for Health Education, 1958.
एमएलए (8वां संस्करण) प्रशस्ति पत्रNão informado. International Journal of Health Education. International Union for Health Education, 1958.
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