O'Leary, M., Lippert, R. H., & Spitz, O. T. (1966). FORTRAN IV and MAP program for computation and plotting of trend surfaces for degrees 1 through 6. State Geological Survey, University of Kansas.
Chicago Style (17th ed.) CitationO'Leary, Mont, R. H. Lippert, and Owen T. Spitz. FORTRAN IV and MAP Program for Computation and Plotting of Trend Surfaces for Degrees 1 Through 6. Lawrence: State Geological Survey, University of Kansas, 1966.
MLA (9th ed.) CitationO'Leary, Mont, et al. FORTRAN IV and MAP Program for Computation and Plotting of Trend Surfaces for Degrees 1 Through 6. State Geological Survey, University of Kansas, 1966.
Warning: These citations may not always be 100% accurate.