Needham, James G. <br/><br/>
A guide to the study of fresh-water biology / 
James G. Needham, Paul R. Needham 
 - 5th ed. rev. and enl 
 - San Francisco :  Holden-Day,  1962 
 - 107 p. :  ill. ;  23 cm. 
<br/><br/><label>ISBN: </label>0816263108 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Freshwater biology<br/>Insects, Aquatic