Washington (State). Bureau of Statistics and Immigration & Giles, H. F. (1920). The advantages and opportunities of the state of Washington for homebuilders, investors and travelers. F. M. Lamborn, Public Printer.
توثيق أسلوب شيكاغو (الطبعة السابعة عشر)Washington (State). Bureau of Statistics and Immigration و Harry F. Giles. The Advantages and Opportunities of the State of Washington for Homebuilders, Investors and Travelers. Olympia: F. M. Lamborn, Public Printer, 1920.
توثيق جمعية اللغة المعاصرة MLA (الطبعة الثامنة)Washington (State). Bureau of Statistics and Immigration و Harry F. Giles. The Advantages and Opportunities of the State of Washington for Homebuilders, Investors and Travelers. F. M. Lamborn, Public Printer, 1920.
تحذير: قد لا تكون هذه الاستشهادات دائما دقيقة بنسبة 100%.