Oliver, T. L. (1993). D.D.R. collectors reference guides 1949-1990. T.L.O.-Publ..
Chicago Style (17th ed.) CitationOliver, Tony L. D.D.R. Collectors Reference Guides 1949-1990. Eton Wick, near Windsor: T.L.O.-Publ., 1993.
MLA (8th ed.) CitationOliver, Tony L. D.D.R. Collectors Reference Guides 1949-1990. T.L.O.-Publ., 1993.
Warning: These citations may not always be 100% accurate.