Hoyt, W. G. <br/><br/>
The yield of streams as a measure of climatic fluctuations. 

 - New York-US :   Geografical record,   1944. 
 - páginas 218-234 :   Ilustraciones blanco y negro 
 - Irregular 
 - Vol. XXXIV, no. 2(Apr. 1944) 
 - The Geographical Review ;   no. 2 .
 - The Geographical Review. .