Não informado. (1979). Index to Social Sciences and Humanities Proceedings. Institute for Scientific Information.
शिकागो शैली (17वां संस्करण) प्रशस्ति पत्रNão informado. Index to Social Sciences and Humanities Proceedings. Philadelphia, Pa: Institute for Scientific Information, 1979.
एमएलए (8वां संस्करण) प्रशस्ति पत्रNão informado. Index to Social Sciences and Humanities Proceedings. Institute for Scientific Information, 1979.
चेतावनी: ये उद्धरण हमेशा 100% सटीक नहीं हो सकते हैं.