Hastings, Stephen <br/><br/>
Irrigated crop rotations in western south Dakota  / 
by Stephen Hastings and Beyer Aune 
 - Washington  :   Department of Agriculture 
 - 47 p. 
 - EUA. Dep. of Agri. Circular; 188 .
<br/><br/><label>LCCN: </label>203909 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Rotación de cultivos  Cultivos -- Irrigación