Hoyt, John Clayton,  1874-1946. <br/><br/>
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. .
<br/><br/> At head of title: United States Department of the interior. 
<br/><br/><label>LCCN: </label>gs 36000086  
<br/><br/><label>Subjects--Topical Terms: </label><br/>Droughts.
<br/><br/><label>LC Class. No.: </label>TC801  / .U2 no. 680