Smith, Gilbert Morgan <br/><br/>
The fresh-water algae of the United States. 

 - 2d ed. 
 - New York  McGraw-Hill  1950. 
 - vii, 719 p.  illus.  24 cm. 
 - McGraw-Hill publications in the botanical sciences .
<br/><br/>Bibliography: p. 660-704. 
<br/><br/><label>LCCN: </label>50011324  
<br/><br/><label>Subjects--Topical Terms: </label><br/>Freshwater algae--United States.
<br/><br/><label>LC Class. No.: </label>QK571  / .S6 1950 
<br/><br/><label>Dewey Class. No.: </label>589.3