The ecological conscience  : values for survival 
edited by Robert Disch 
 - Englewood Cliffs:  Prentice-Hall,  1970. 
 -  ix, 206p. 
<br/><br/> PB 
<br/><br/><br/>Eng 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Ecology
<br/><br/><label>Dewey Class. No.: </label>301.31  / DIE