00785cam a22002531 4500 gs 49000277 DLC 20260227111355.0 800123s1949 dcu b f000 0 eng c gs 49000277 (OCoLC)5906913 U.S. Geol. Survey. Libr. MsSM DLC premarc QE75 .C5 no. 52 Langbein, Walter Basil, 1907- Annual runoff in the United States, by Walter B. Langbein and others. [Washington] 1949. 14 p. : illus., fold. map (in pocket) 27 cm. Geological Survey (U.S.). Circular, no. 52 Cover title. "References cited": p. 13-14. Runoff. Water-supply United States. 28408 28408