Washington (State). Bureau of Statistics and Immigration & Washington (State). Office of the Secretary of State. (1940). Descriptive and statistical information of Washington "the evergreen state." (1940 ed.). Belle Reeves, Secretary of State.
توثيق أسلوب شيكاغو (الطبعة السابعة عشر)Washington (State). Bureau of Statistics and Immigration و Washington (State). Office of the Secretary of State. Descriptive and Statistical Information of Washington "the Evergreen State.". 1940 ed. [Olympia]: Belle Reeves, Secretary of State, 1940.
توثيق جمعية اللغة المعاصرة MLA (الطبعة الثامنة)Washington (State). Bureau of Statistics and Immigration و Washington (State). Office of the Secretary of State. Descriptive and Statistical Information of Washington "the Evergreen State.". 1940 ed. Belle Reeves, Secretary of State, 1940.