=LDR            22        4500
=001  3553
=082  04$a526.907 RIT
=100  1\$aRitchie, William
=245  10$aMapping for field scientists
=260  \\$aNewton Abbot :$bDavid and Charles,$c1977
=650  \0$aBooks
=852  \\$bFreeman Library$h526.907 RIT