Droughts of 1930-34,
Hoyt, John Clayton, 1874-1946.
Droughts of 1930-34, by John C. Hoyt. - Washington, Govt. Print. Off., 1936. - vii, 106 p. illus., fold. map, 17 tab. (part fold.) diagrs. 23 cm. - Geological Survey (U.S.). Water-supply paper 680 . - Water-supply paper (Washington, D.C.) ; 680. .
At head of title: United States Department of the interior.
gs 36000086
Droughts.
TC801 / .U2 no. 680
Droughts of 1930-34, by John C. Hoyt. - Washington, Govt. Print. Off., 1936. - vii, 106 p. illus., fold. map, 17 tab. (part fold.) diagrs. 23 cm. - Geological Survey (U.S.). Water-supply paper 680 . - Water-supply paper (Washington, D.C.) ; 680. .
At head of title: United States Department of the interior.
gs 36000086
Droughts.
TC801 / .U2 no. 680