Não informado. (1973). Geodesy, Mapping and Photogrammetry. American Geophysical Union.
शिकागो शैली (17वां संस्करण) प्रशस्ति पत्रNão informado. Geodesy, Mapping and Photogrammetry. Washington: American Geophysical Union, 1973.
एमएलए (8वां संस्करण) प्रशस्ति पत्रNão informado. Geodesy, Mapping and Photogrammetry. American Geophysical Union, 1973.
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