Gray, James R. <br/><br/>
Ranch economics /    
James R. Gray 
 - 1st ed. 
 - Ames   Iowa State University Press ,   1968. 
 - viii, 534 p. :    ill., maps ;    24 cm. 
<br/><br/>Includes bibliographical references. 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Cattle ----United States.----<br/>Sheep----United States.----<br/>Rangerlands----United States.----
<br/><br/><label>Dewey Class. No.: </label>338.176 GRA