=LDR 22 4500 =001 2933 =082 04$a330.9 COO =100 1\$aCooper, E. H. =245 10$aIntroduction to economic geography =260 \\$aLondon :$bUniversity Tutorial Press,$c1972 =650 \0$aBooks =852 \\$bFreeman Library$h330.9 COO