The Environmental crisis  man's struggle to live with himself 
Edited by Harold W. Helfrich, Jr. 
 - New Haven  Yale University Press  1970 
 - x, 187 p. 
<br/><br/>Includes bibliographical references 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Pollution--Addresses, essays, lectures.<br/>Natural resources--Addresses, essays, lectures<br/>Man--Influence on nature--Addresses, essays, lectures.