MITCHELL, D S, Ed. <br/><br/>
Aquatic vegetation and its use and control                                                                               

 -  Unesco                                                        1974 
<br/><br/><label>Subjects--Topical Terms: </label><br/> HYDROLOGY  | OCEANOGRAPHY  | OCEANS  | AQUATIC PLANTS  | HYDROGEOLOGY  | GEOLOGY  | GEOMORPHOLOGY