Hynes, Hugh Bernard Noel.  1917- <br/><br/>
The biology of polluted waters / 
by H. B. N. Hynes, with an introduction by F. T. K. Pentelow. 
 - Toronto :  University of Toronto Press,  1971. 
 - xiv, 202 p. :  ill. 
<br/><br/> First published in 1960 by Liverpool University Press. 
<br/><br/><label>ISBN: </label>0802016901 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Water--Pollution--Environmental aspects.<br/>Freshwater biology