=LDR 00000nam a2200000ui 4500 =001 2143 =008 250530s1970\\\\xx\|||||||||||||||||eng\d =082 04$a630 GRE =100 1\$aGregor, Howard F. =245 10$aGeography of Agriculture: Themes in Research =260 \\$aUpper Saddle River, NJ :$bPrentice Hall,$c1970 =852 \\$bFreeman Library$cBooks$h630 GRE