Crops in peace and war:   The yearbook of agriculture 1950-1951  
/ United States Government Printing Office 
 - Washington, D. C.:   United States Government Printing Office,   2003 
 - 942p. 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Science
<br/><br/><label>Subjects--Index Terms: </label>Agriculture 
<br/><br/><label>Universal Decimal Class. No.: </label>R 631(058)   / J1