Has the United States enough water?
by A. M. Piper.
- Washington, U.S. Govt. Print. Off., 1965.
- iii, 27 p. illus., maps (3 fold. col. in pocket) 24 cm.
- Geological Survey (U.S.) Water-supply paper 1797 .
- Water-supply paper (Washington, D.C.) ; 1797. .