=LDR            22        4500
=001  947
=082  04$a005.1 UNW
=100  1\$aUnwin, David J.
=245  10$aComputer programming for geographers
=260  \\$aLondon :$bLongman,$c1985
=650  \0$aBooks
=852  \\$bFreeman Library$h005.1 UNW