Gustavus Adolphus College, St. Peter, Minnesota, Nobel Conference (7th : 1971 : Gustavus Adolphus College), McHale, J., & Roslansky, J. D. (1972). Shaping the future. North-Holland.
शिकागो शैली (17वां संस्करण) प्रशस्ति पत्रGustavus Adolphus College, St. Peter, Minnesota, Nobel Conference (7th : 1971 : Gustavus Adolphus College), John McHale, और John D. Roslansky. Shaping the Future. Amsterdam: North-Holland, 1972.
एमएलए (9वां संस्करण) प्रशस्ति पत्रGustavus Adolphus College, St. Peter, Minnesota, et al. Shaping the Future. North-Holland, 1972.
चेतावनी: ये उद्धरण हमेशा 100% सटीक नहीं हो सकते हैं.