Não informado. (1971). Science and government report. Science and Government Reports.
शिकागो शैली (17वां संस्करण) प्रशस्ति पत्रNão informado. Science and Government Report. Washington: Science and Government Reports, 1971.
एमएलए (8वां संस्करण) प्रशस्ति पत्रNão informado. Science and Government Report. Science and Government Reports, 1971.
चेतावनी: ये उद्धरण हमेशा 100% सटीक नहीं हो सकते हैं.