Metcalf, K. D., Russell, J. D., & Osborn, A. D. (1943). The program of instruction in library schools. University of Illinois Press.
शिकागो शैली (17वां संस्करण) प्रशस्ति पत्रMetcalf, Keyes DeWitt, John Dale Russell, और Andrew Delbridge Osborn. The Program of Instruction in Library Schools. Urbana, IL: University of Illinois Press, 1943.
एमएलए (9वां संस्करण) प्रशस्ति पत्रMetcalf, Keyes DeWitt, et al. The Program of Instruction in Library Schools. University of Illinois Press, 1943.
चेतावनी: ये उद्धरण हमेशा 100% सटीक नहीं हो सकते हैं.