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Petroleum industry and trade	2339	10749
Petroleum industry and trade -- Statistics	6	107
Petroleum industry and trade -- United States -- Statistics -- Periodicals	-	67
Petroleum industry and trade -- United States	55	1531
Petroleum industry and trade -- United States -- Statistics	1	99
STATISTICS	-	24
Petroleum industry and trade -- Venezuela	38	515
VENEZUELA	3	2
PETROLEUM	-	2
Venezuela	1832	11255

Subject Heading "Petroleum industry and trade -- Statistics -- Periodicals"