United Nations Educational, Scientific and Cultural Organization. (1962). Unesco sourcebook for science teaching (Rev. and enl. ed.). Unesco.
शिकागो शैली (17वां संस्करण) प्रशस्ति पत्रUnited Nations Educational, Scientific and Cultural Organization. Unesco Sourcebook for Science Teaching. Rev. and enl. ed. Paris: Unesco, 1962.
एमएलए (9वां संस्करण) प्रशस्ति पत्रUnited Nations Educational, Scientific and Cultural Organization. Unesco Sourcebook for Science Teaching. Rev. and enl. ed. Unesco, 1962.
चेतावनी: ये उद्धरण हमेशा 100% सटीक नहीं हो सकते हैं.