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- [31] DEVELOPMENTS IN EASTERN CANADA IN 1979. The American Association of Petroleum Geologists bulletin, 1980, 64 (09): : 1518 - 1528
- [32] DEVELOPMENTS IN OKLAHOMA AND PANHANDLE OF TEXAS IN 1979. The American Association of Petroleum Geologists bulletin, 1980, 64 (09): : 1387 - 1392
- [33] PETROLEUM DEVELOPMENTS IN NORTH AFRICA IN 1979. The American Association of Petroleum Geologists bulletin, 1980, 64 (11): : 1739 - 1775
- [34] NORTH-AMERICAN DRILLING ACTIVITY IN 1971 - DEVELOPMENTS IN EAST-CENTRAL STATES IN 1971 AMERICAN ASSOCIATION OF PETROLEUM GEOLOGISTS BULLETIN, 1972, 56 (07): : 1238 - &
- [36] DEVELOPMENTS IN LOUISIANA GULF COAST OFFSHORE IN 1979. The American Association of Petroleum Geologists bulletin, 1980, 64 (09): : 1445 - 1454
- [37] DEVELOPMENTS IN LOUISIANA GULF COAST ONSHORE IN 1979. The American Association of Petroleum Geologists bulletin, 1980, 64 (11): : 2012 - 2025
- [38] HELIUM RESOURCES OF THE UNITED STATES, 1979. Information Circular - United States, Bureau of Mines, 1980, (8831):