O'Leary, M. (1966). Fortran IV and map program for computation and plotting of trend surfaces for degrees 1 through 6. The University of Kansas.
Dyfyniad Arddull ChicagoO'Leary, Mont. Fortran IV and Map Program for Computation and Plotting of Trend Surfaces for Degrees 1 Through 6. Lawrence: The University of Kansas, 1966.
Dyfyniad MLAO'Leary, Mont. Fortran IV and Map Program for Computation and Plotting of Trend Surfaces for Degrees 1 Through 6. The University of Kansas, 1966.
Rhybudd: Mae'n bosib nad yw'r dyfyniadau hyn bob amser yn 100% cywir.