Postman, Neil. <br/><br/>
Teaching as a subversive activity / 
Neil Postman & Charles Weingartner. 
 - New York :  Dell,  1987. 
 - Laurel books .
<br/><br/> Originally published, 1969. 
<br/><br/><label>ISBN: </label>0440384850 9780440384854