Mathematica, inc., Princeton, N.J, & United States. National Advisory Commission on Libraries. (1967). On library statistics: Submitted to the National Advisory Commission on Libraries. National Advisory Commission on Libraries.
शिकागो शैली (17वां संस्करण) प्रशस्ति पत्रMathematica, inc., Princeton, N.J, और United States. National Advisory Commission on Libraries. On Library Statistics: Submitted to the National Advisory Commission on Libraries. Washington, D.C.: National Advisory Commission on Libraries, 1967.
एमएलए (8वां संस्करण) प्रशस्ति पत्रMathematica, inc., Princeton, N.J, और United States. National Advisory Commission on Libraries. On Library Statistics: Submitted to the National Advisory Commission on Libraries. National Advisory Commission on Libraries, 1967.
चेतावनी: ये उद्धरण हमेशा 100% सटीक नहीं हो सकते हैं.