↑ Zippo Companion by Avi Baer and Alexander Neumark (Hardcover - ngày 15 tháng 12 năm 2000) 192 pages Publisher: Compendium Publishing. ISBN 1906347131. ISBN 978-1906347130
↑ An American Legend Zippo: a Collector's Companion by Avi R; Neumark, Alexander Baer (Hardcover - 1999)
↑ Sherry Buchanan and Bradford Edwards, Vietnam Zippos:American Soldiers’ Engravings and Stories, 1965—1973. Chicago: University of Chicago Press, 2007.
↑ Paulette Dininny, "Keepers of the Flame: After Big Sales in World War II and Parts in Old Movies, Zippos Are Still Around, Often as hot Collector's Items," Smithsonian, vol. 29, no. 9 (December 1998), pg. 44.
