McMains, H. J., & McMains, H. J. (1978). Alternatives for growth: The engineering and economics of natural resources development. Ballinger Pubs.
शिकागो शैली (17वां संस्करण) प्रशस्ति पत्रMcMains, Harvey J., और Harvey J.;Wilcox McMains. Alternatives for Growth: The Engineering and Economics of Natural Resources Development. Ballinger Pubs, 1978.
एमएलए (9वां संस्करण) प्रशस्ति पत्रMcMains, Harvey J., और Harvey J.;Wilcox McMains. Alternatives for Growth: The Engineering and Economics of Natural Resources Development. Ballinger Pubs, 1978.
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