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.
توثيق أسلوب شيكاغو (الطبعة السابعة عشر)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.
توثيق جمعية اللغة المعاصرة MLA (الطبعة الثامنة)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.
تحذير: قد لا تكون هذه الاستشهادات دائما دقيقة بنسبة 100%.