=LDR 22 4500 =001 6040 =082 04$a553.2 PRA =100 1\$aPratt, Wallace E. =245 10$aWorld Geography of Petroleum =260 \\$aNew York :$bAmerican Geographical Society,$c1950 =650 \0$aBooks =852 \\$bGeography Basement$h553.2 PRA