Hoffer, Eric. The true believer : thoughts on the nature of mass movements. - [1st ed.] - New York : Harper, c1951. - 160p. ; 20 cm. Includes bibliography. LCCN: 51001405 Subjects--Topical Terms: Fanaticism.Social groups.Social psychology. LC Class. No.: HM281 HM281 / .H6 / .H6 Dewey Class. No.: 301.1582