APA (7 वां संस्करण) प्रशस्ति पत्र
Manning, T. G. (1967). Government in science: The U.S. Geological Survey, 1867-1894. University of Kentucky Press.
शिकागो शैली (17वां संस्करण) प्रशस्ति पत्र
Manning, Thomas G. Government in Science: The U.S. Geological Survey, 1867-1894. [Lexington, Kentucky]: University of Kentucky Press, 1967.
एमएलए (9वां संस्करण) प्रशस्ति पत्र
Manning, Thomas G. Government in Science: The U.S. Geological Survey, 1867-1894. University of Kentucky Press, 1967.
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