=LDR 00000nam a2200000ui 4500 =001 5500 =008 250530s1973\\\\xx\|||||||||||||||||eng\d =082 04$a551.07 MIT =100 1\$aMitchell, Colin W. =245 10$aTerrain Evaluation: an introductory handbook to the history, principles and methods of practical terrain assessment =260 \\$aLondon :$bLongman,$c1973 =852 \\$bFreeman Library$cBooks$h551.07 MIT