Smith, Gilbert Morgan, 1885-1959 <br/><br/>
The fresh-water algae of the United States / 
Gilbert Morgan, Smith 
 - 2nd ed. 
 - New Jersey :  McGraw-Hill,  1950 
 - vii, 719 p. :  ill. ;  24 cm. 
<br/><br/>Bibliography : p. (660-704) 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Freshwater algae--United States