Silver W S Ed. <br/><br/>
Practical application of azolla for rice production. 
Silver W S Ed.; Schroder E C Ed. 
 - Dordrecht  Martinus Nijhoff Publishers       1984 
 - vii,227p.  cm. 
<br/><br/><label>Standard No.: </label>89692 
<br/><br/><label>Source: </label> Textual 
<br/><br/><label>Dewey Class. No.: </label>J381 : 24p1,N82, M4