- Eckel, Edwin B., 1939, Geology of some dam sites on Little Colorado and its tributaries, Arizona: s.n.], Open-File Report 40-5, 50 leaves :ill., maps ;27 cm.,
- Erdmann, C. E., 1939, Reconnaissance map of the Willishaw Flats anticlinal nose, Toole County, Montana: Open-File Report 39-3, map,
- Erdmann, C. E.; Davis, N. A.; Peden, W. M., 1939, Geologic map of Cut Bank-West Kevin-Border districts, Montana: Open-File Report 39-2, map,
- Erdmann, Charles Edgar, 1939, Preliminary structure contour map of the Dunkirk-Chester region, Toole and Liberty Counties, Montana: Open-File Report 39-1, 1 map ;31 x 46 cm., on sheet 42 x 68 cm., folded in envelope 30 x 24 cm.,
- Geological Survey (U.S.), 1939, Geologic map of the Wilson Creek Dome, Rio Blanco and Moffat Counties, Colorado: United States Geological Survey, Open-File Report 39-4, 1 map ;27 x 31 cm.,
- Geological Survey (U.S.), 1939, Geologic map and section of Powder Wash Dome, Moffat County, Colorado: Open-File Report 39-6, 1 map ; 33 x 41 cm. on sheet 54 x 58 cm.,
- Geological Survey (U.S.), 1939, Geologic Structure of Bueyeros carbon dioxide area, Harding County, New Mexico: Open-File Report 39-7, 2 p.,
- Geological Survey (U.S.), 1939, Potential water power in the United States: Open-File Report 39-9, 5 p. (Revision of earlier estimates),
- Gould, Charles Newton; Schoff, Stuart Leeson, 1939, Geological report on water conditions at Platt National Park, Oklahoma: Open-File Report 39-14, 38 leaves, [10] leaves of plates : ill., map ; 28 cm.,
- Helland, R. O., 1939, Water utilization in the basin of South Umpqua River, Oregon: Open-File Report 39-8, 33 p.; 5 maps; 10 figs.,
- Kramer, W. B.; McMillan, R.; Guild, P. W., 1939, Geologic map and section of Piceance Creek Dome, Colorado: Open-File Report 39-5, map,
- Northrop, J. D., 1939, Reconnaissance map of the Dewey Area, Weston and Niobrara counties, Wyoming, and Custer and Fall River counties, South Dakota: Open-File Report 39-13, map,
- Pierce, W. G.; Warren, W. C.; Bryson, R. P., 1939, Preliminary structure contour map of the Shoshone anticline and the adjoining region near Cody, Park County, Wyoming: Open-File Report 39-10, 5 p.; 1 map and 3 sections,
- Ratsbaum, E. A.; translated by Sokoloff, V. P., 1939, Field spectroanalytical laboratory for servicing prospecting parties: U.S. G.P.O., Open-File Report 48-21-A, 5 leaves ;28 cm.,
- Smith, P. S., 1939, Mineral production of Alaska in 1938: Open-File Report 39-11, 7 p.,
- Smith, P. S., 1939, Mining in Alaska in 1938: Open-File Report 39-12, 5 p.,
- Spicer, H. Cecil, 1939, Report on resistivity measurements with estimates of depth to bedrock at certain dam sites on the Little Colorado River tributaries, 1939: U.S. Geological Survey, Open-File Report 41-20, 25 [i.e. 45] leaves :ill., maps,
