Postman, Neil. Teaching as a subversive activity [by] Neil Postman [and] Charles Weingartner. - New York, Delacorte Press [1969] - xv, 219 p. 22 cm. ISBN: 0440384850 LCCN: 69011842 Subjects--Topical Terms: Education--United States. LC Class. No.: LA217 / .P6 Dewey Class. No.: 370/.973