=LDR  00000nam a2200000ui 4500
=001  4445
=008  250530s1954\\\\xx\|||||||||||||||||eng\d
=082  04$a551.4 THO
=100  1\$aThornbury, William D.
=245  10$aPrinciples of Geomorphology
=260  \\$aNew York :$bJohn Wiley,$c1954
=852  \\$bFreeman Library$cBooks$h551.4 THO