Biological control of water pollution 
edited by Joachim Tourbier and Robert W. Pierson, Jr. ; introd. by Edward W. Furia. 
 - Philadelphia  University of Pennsylvania Press  1976. 
 - ix, 340 p.  ill. 
<br/><br/> "Based, in part, upon concepts and techniques presented at the International Conference on Biological Water Quality Improvement Alternatives, held on March 3, 4, and 5, 1975, at the University of Pennsylvania." 
<br/><br/>Includes bibliographical references and index. 
<br/><br/><label>LCCN: </label>76008593 //r85 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Sewage--Purification--Biological treatment--Congresses.<br/>Water--Pollution--Congresses.
<br/><br/><label>LC Class. No.: </label>TD745  / .B53 
<br/><br/><label>Dewey Class. No.: </label>628.4