Graham, Frank. <br/><br/>
Since silent spring / 
Frank Graham, Jr. 
 - London :  Pan Books,  1970. 
 - xvi, 284 p. 
<br/><br/><label>ISBN: </label>033002938X 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Agricultural chemicals--Environmental aspects--United States.<br/>Pesticides--Environmental aspects--United States.