- Brown, John Stafford, 1920, Routes to desert watering places in the Salton Sea Region, California: Govt. print. off., Water Supply Paper 490-A, v, 86 p. vii pl. (incl. fold. maps) ;23 cm.,
- Clark, William Otterbein; Riddell, C. W.; Meinzer, Oscar Edward, 1920, Exploratory drilling for water and use of ground water for irrigation in Steptoe Valley, Nevada: Govt. Print. Off., Water Supply Paper 467, 70 p. :illus., plates, maps (incl. 1 fold. in pocket) diagrs. ;23 cm.,
- Geological Survey (U.S.), 1920, Surface water supply of the United States, 1917, Part I, North Atlantic slope basins: U.S. G.P.O., Water Supply Paper 451, 163, xxxvii p. :ill. ;23 cm.,
- Geological Survey (U.S.), 1920, Surface water supply of the United States, 1917, Part II, South Atlantic slope and eastern Gulf of Mexico basins: U.S. G.P.O., Water Supply Paper 452, 64, xxvii p. :ill. ;23 cm.,
- Geological Survey (U.S.), 1920, Surface water supply of the United States, 1917, Part III, Ohio River basin: U.S. Govt. Print. Off., Water Supply Paper 453, 173, xxxii p. :ill. ;24 cm.,
- Geological Survey (U.S.), 1920, Surface water supply of the United States, 1917 : Part 11, Pacific slope basins in California: U.S. Govt. Print. Off., Water Supply Paper 461, 314 p. ;23 cm.,
- Geological Survey (U.S.), 1920, Surface water supply of the United States, 1917 : Part XII. North Pacific slope drainage basins : C. Lower Columbia River Basin and Pacific slope drainage basins in Oregon: U.S. G.P.O., Water Supply Paper 464, 149, li p. :ill. ;23 cm.,
- Geological Survey (U.S.), 1920, Surface water supply of the United States, 1918, Part II, South Atlantic slope and eastern Gulf of Mexico basins: U.S. Govt. Print. Off., Water Supply Paper 472, 56 p. ;23 cm.,
- Geological Survey (U.S.), 1920, Surface water supply of the United States, 1918, Part IV, St. Lawrence River basin: U.S. G.P.O., Water Supply Paper 474, 110, xxxii p. :ill. ;23 cm.,
- Jones, Benjamin E.; Burley, R. J., 1920, Water supply of St. Mary and Milk rivers, 1898-1917: Govt. Print. Off., Water Supply Paper 491, 590 p. :plates ;23 cm.,
- Palmer, Harold Schjoth, 1920, Ground water in the Norwalk, Suffield, and Glastonbury areas, Connecticut: Govt. Print. Off., Water Supply Paper 470, 171 p. :ill., maps ;23 cm.,
- Waring, Gerald Ashley, 1920, Ground water in the Meriden area, Connecticut: Govt. Print. Off., Water Supply Paper 449, 83 p. :VII pl. (incl. 4 fold. maps) tables, diagrs. ;23 cm.,
