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Trading natural gas : cash futures options and swaps /
Published 1997“…Tulsa ,Oklahoma : Penn Well Books ,…”
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International oil company financial management in nontechnical language /
Published 1998“…Tulza, Oklahoma : PennWell Books…”
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Alternative motor fuels : a nontechnical guide /
Published 1996“…Tulsa, Oklahoma : PennWell Books…”
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Petroleum production in nontechnical language /
Published 1995“…Tulsa, Oklahoma : PennWell Books …”