Prescott, G.W. <br/><br/>
How to know the Fresh - Water Algae 

 - Dubuque,  W. M. C. Brown Company,  1954, 
 - 211p.  21cm. 
<br/><br/><label>Subjects--Topical Terms: </label><br/>How To Know The Fresh - Water Algae<br/>Fresh - Water Algae
<br/><br/><label>Dewey Class. No.: </label>582.28  / PRE