Worrall, L. (1990). Geographic information systems: Developments and applications. Belhaven Press.
Chicago Style (17th ed.) CitationWorrall, Les. Geographic Information Systems: Developments and Applications. London: Belhaven Press, 1990.
MLA (8th ed.) CitationWorrall, Les. Geographic Information Systems: Developments and Applications. Belhaven Press, 1990.
Warning: These citations may not always be 100% accurate.