著者名,書名,版表示,出版者名,出版年,シリーズ名,番号,ISBN,ISSN,URL "Harbaugh, John Warvelle and Sackin, Michael J.",Fortran IV program for harmonic trend analysis using double fourier series and regularly gridded data for the GE 625 computer,,"State Geological Survey, University of Kansas",1968,Computer contribution,,,,https://cir.nii.ac.jp/crid/1130282268964274560