Proceedings of the Conference on Nitrogen as a Water Pollutant, Copenhagen, August 18-20, 1975/ 
sponsored 
 - Oxford:  Pergamon Press,  1977. 
 - 765 pages :  illustrations ;  27 cm. 
 - Progress in water technology  v.8, no.4/5 .
<br/><br/><label>ISBN: </label>0080209009 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Water--Nitrogen content--Congresses.<br/>Water--Pollution.