Vroomen Harry <br/><br/>
Fertilizer trade statistics, 1970-91 / 
Harry Vroomen, Harold Taylor ; U.S. Department of agriculture. Economic research service. 
 - Washington (D.C.) :  U.S. Department of Agriculture,  1993. 
 - 39 p. :  tables, fig. ;  28 cm. 
 - Statistical Bulletin  № 851 .
<br/><br/> Footnotes 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Fertilizer trade