1. Preliminary progress report on cooperative investigations in Imperial Valley, California, for year 1950;Bradshaw,1951
2. Drainage investigations in Imperial Valley, Calif., 1941–51;Donnan,1954
3. Problems of Imperial Irrigation District relating to Salton Sea, drainage and quality of water;Dowd,1952
4. Holbrook, G. F., , , Probable future stages of Salton Sea, , U. S. Geological Survey, , 1927, (typed).
5. Tidal effects at the mouth of the Colorado River;Lawson,1950