=LDR 00000nam a2200000ui 4500 =001 1849 =008 250530s1959\\\\xx\|||||||||||||||||eng\d =082 04$a910.01 PLA =100 1\$aPlatt, Robert S. =245 10$aField study in American geography: the development of theory and method exemplified by selections =260 \\$aIllinois :$bDepartment of Geography University of Chicago,$c1959 =852 \\$bFreeman Library$cBooks$h910.01 PLA