=LDR 22 4500 =001 2154 =082 04$a330.9 BER =100 1\$aBerry, Brian J. L. =245 10$aThe Geography of economic systems =260 \\$aUpper Saddle River, N.J. :$bPrentice Hall,$c1976 =650 \0$aBooks =700 1\$aConkling, Edgar C. =700 1\$aRay, D. Michael =852 \\$bFreeman Library$h330.9 BER$zNot located