Markham, R. P. (1984). A guide to World topographic maps on microfiche. Microforms Unlimited.
Chicago Style (17th ed.) CitationMarkham, Robert P. A Guide to World Topographic Maps on Microfiche. Greeley, Colo.: Microforms Unlimited, 1984.
MLA (9th ed.) CitationMarkham, Robert P. A Guide to World Topographic Maps on Microfiche. Microforms Unlimited, 1984.
Warning: These citations may not always be 100% accurate.