Wallace, R. F. (1956). An evaluation of wildlife resources in the State of Washington. State College of Washington, School of Economics and Business, Bureau of Economic and Business Research.
Lua i Stíl Chicago (17ú heag.)Wallace, Robert F. An Evaluation of Wildlife Resources in the State of Washington. Pullman: State College of Washington, School of Economics and Business, Bureau of Economic and Business Research, 1956.
Lua MLA (8ú heag.)Wallace, Robert F. An Evaluation of Wildlife Resources in the State of Washington. State College of Washington, School of Economics and Business, Bureau of Economic and Business Research, 1956.
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