Lumpkin, Thomas A. <br/><br/>
Azolla as a green manure :  use and management in crop production / 
Thomas A. Lumpkin and Donald L. Plucknett 
 - Boulder, Col. :  Westview Press,  1982 
 - 230 p. ;  20 cm. 
 - Westview tropical agriculture series  no.5 .
<br/><br/><label>ISBN: </label>089158451X 
<br/><br/><label>LCCN: </label>82-50919 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Azolla<br/>Azolla as fertilizer<br/>Rice--Fertilizers<br/>Azolla as feed