Wierer, K <br/><br/>
Fertilizer marketing / 
by K Wierer, J C Abbott. 
 - Rome:  Food and Agriculutral Organisation,  1978. 
 - 156p. 
 - FAO Economic and Social Development Series;  no.12 .
<br/><br/><label>Subjects--Topical Terms: </label><br/>Fertilizer marketing
<br/><br/><label>Dewey Class. No.: </label>381.4566862  / WIE