Gruss, Edmond C. Jehovah's Witnesses : their claims, doctrinal changes, and prophetic speculation : what does the record show? / Edmond C. Gruss. - 2nd ed. - Fairfax, VA : Xulon Press, c2007. - xv, 357 p. ; pbk ; 28 cm. Includes bibliographical references (p. 356). ISBN: 193123230X LCCN: 2002280965 Subjects--Topical Terms: Jehovah's Witnesses--Controversial literature. Dewey Class. No.: 289.92/GRU