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- [32] DEVELOPMENTS IN NEW YORK IN 1979. The American Association of Petroleum Geologists bulletin, 1980, 64 (09): : 1455 - 1461
- [34] DEVELOPMENTS IN EASTERN CANADA IN 1979. The American Association of Petroleum Geologists bulletin, 1980, 64 (09): : 1518 - 1528
- [36] FOOD PROCESSING WASTE MANAGEMENT, 1979. Proceedings - OSU Applied Mechanisms Conference (Oklahoma State University), 1979,
- [37] DEVELOPMENTS IN OKLAHOMA AND PANHANDLE OF TEXAS IN 1979. The American Association of Petroleum Geologists bulletin, 1980, 64 (09): : 1387 - 1392
- [38] Global Swiss Energy Statistics for 1979. Bulletin de l'Association suisse des electriciens, 1980, 71 (12): : 598 - 642
- [39] HELIUM RESOURCES OF THE UNITED STATES, 1979. Information Circular - United States, Bureau of Mines, 1980, (8831):