Readings in aquatic ecology /  
edited by Richard F. Ford, William E. Hazen. 
 - Philadelphia :   W. B. Saunders,   c1972. 
 - vi, 397 p. :   il. 
<br/><br/><label>ISBN: </label>0721638104 
<br/><br/><label>LCCN: </label>77188388  
<br/><br/><label>Subjects--Topical Terms: </label><br/>Ecologia aquática--Discursos, ensaios, conferências.
<br/><br/><label>Dewey Class. No.: </label>574.526308