=LDR            22        4500
=001  6438
=082  04$a551.3 SCH
=100  1\$aSchumm, Stanley A.
=245  10$aSlope Morphology
=260  \\$aPennsylvania :$bDowden, Hutchinson & Ross Inc. ,$c1973
=650  \0$aBooks
=852  \\$bGeography Basement$h551.3 SCH