Não informado. (1940). Bulletin of the Utah Engineering Experiment Station. Utah Engineering Experiment Station.
शिकागो शैली (17वां संस्करण) प्रशस्ति पत्रNão informado. Bulletin of the Utah Engineering Experiment Station. Salt Lake City, Utah: Utah Engineering Experiment Station, 1940.
एमएलए (8वां संस्करण) प्रशस्ति पत्रNão informado. Bulletin of the Utah Engineering Experiment Station. Utah Engineering Experiment Station, 1940.
चेतावनी: ये उद्धरण हमेशा 100% सटीक नहीं हो सकते हैं.