American Petroleum Institute Research Project 44. Supplement. E.
Oil Industry Background Information Bulletin
Proceedings - American Petroleum Institute, Refining Department
American Petroleum Institute
Proceedings
Primer of oil and gas production
Drilling and Production Practice
American Petroleum Institute Research Project 44. Supplement. D.
American Petroleum Institute Standards
Proceedings
Proceedings
Proceedings
Anglo-American Oil Agreement
American Petroleum Industry
American Petroleum Institute Thesaurus
Petroleum Facts and Figures
American Petroleum Institute Bulletin
American Petroleum Institute Research Project 44. Supplement. B.
Discussion paper / American Petroleum Institute