Hansen, B  . <br/><br/>
Cotton vs. grain :  on the optimum allocation of agricultural land / 
B Hansen 
 - Cairo :  INP ,  1963 
 - 30p. :  ill. ;  32 cm. 
<br/><br/>Includes bibliographical references and index. 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Agriculture<br/>Egypt<br/>Cotton<br/>Crops
<br/><br/><label>Dewey Class. No.: </label>631.1  / HAN