Tipper, J. C. (1979). Surface modelling techniques. Kansas Geological Survey.
Chicago Style (17th ed.) CitationTipper, John C. Surface Modelling Techniques. Lawrence, Kan: Kansas Geological Survey, 1979.
MLA (9th ed.) CitationTipper, John C. Surface Modelling Techniques. Kansas Geological Survey, 1979.
Warning: These citations may not always be 100% accurate.