Making aquatic weeds useful :  some perspectives for Developing Countries / 
Natrional academy of sciences. 
 - Washington, D.C. :  National Academy of Sciences,  c1976. 
 - vii, 175 p. :  ill. ;  23 cm. 
<br/><br/> Resumes in Spanish and French. 
<br/><br/>Includes bibliographical refereneces. 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Aquatic weeds--Control--Development Countries.<br/>Aquatic plants--Economic aspects--Development Countries.
<br/><br/><label>LC Class. No.: </label>SB614  / .N37 1976