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- [21] HEALTH AND SAFETY CONDITIONS IN NATURAL-GAS INDUSTRY AMERICAN GAS ASSOCIATION MONTHLY, 1976, 58 (05): : 26 - 27
- [22] NATURAL-GAS INDUSTRY SERVES A GROWING CANADA AMERICAN GAS ASSOCIATION MONTHLY, 1977, 59 (1-2): : 15 - 17
- [23] NATURAL-GAS FOR VEHICLES - A COMMENT ON THE STATE OF THE INDUSTRY JOURNAL OF CANADIAN PETROLEUM TECHNOLOGY, 1992, 31 (08): : 5 - 6
- [24] FINANCING CAPITAL NEEDS OF NATURAL-GAS INDUSTRY AMERICAN GAS ASSOCIATION MONTHLY, 1974, 56 (01): : 25 - &
- [28] GAS-RESEARCH-INSTITUTE FORMED BY NATURAL-GAS INDUSTRY AMERICAN GAS ASSOCIATION MONTHLY, 1976, 58 (09): : 6 - 6
- [29] EVALUATION OF NATURAL-GAS AS AN ALTERNATIVE FUEL IN THE TRANSIT INDUSTRY ITE JOURNAL-INSTITUTE OF TRANSPORTATION ENGINEERS, 1994, 64 (03): : 14 - &
- [30] NORTH OF THE BORDER - A LOOK AT THE CANADIAN NATURAL-GAS INDUSTRY AMERICAN GAS ASSOCIATION MONTHLY, 1980, 62 (09): : 14 - 15