Gupta, O.P <br/><br/>
Aquatic weeds  their menace and control 

 - New Delhi  Today & Tomorrow's  1979 
 - 272 p. 
<br/><br/><label>Subjects--Topical Terms: </label><br/>AGRICULTURE
<br/><br/><label>Dewey Class. No.: </label>632.58  / GUP