Wallace, R. F. (1952). Economic aspects of wildlife resources in the State of Washington. State College of Washington, School of Economics and Business, Bureau of Economic and Business Research.
शिकागो शैली (17वां संस्करण) प्रशस्ति पत्रWallace, Robert F. Economic Aspects of Wildlife Resources in the State of Washington. Pullman: State College of Washington, School of Economics and Business, Bureau of Economic and Business Research, 1952.
एमएलए (8वां संस्करण) प्रशस्ति पत्रWallace, Robert F. Economic Aspects of Wildlife Resources in the State of Washington. State College of Washington, School of Economics and Business, Bureau of Economic and Business Research, 1952.
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