Ripple, W. J. (1989). Fundamentals of geographic information systems: A compendium. American Society for Photogrammetry and Remote Sensing, and American Congress on Surveying and Mapping.
Chicago Style (17th ed.) CitationRipple, William J. Fundamentals of Geographic Information Systems: A Compendium. Bethesda, Md: American Society for Photogrammetry and Remote Sensing, and American Congress on Surveying and Mapping, 1989.
MLA (9th ed.) CitationRipple, William J. Fundamentals of Geographic Information Systems: A Compendium. American Society for Photogrammetry and Remote Sensing, and American Congress on Surveying and Mapping, 1989.
Warning: These citations may not always be 100% accurate.