Washington (State). Statistics and Immigration Bureau, Washington (State). Office of the Secretary of State, Washington (State). Office of the Secretary of State, & Washington (State). Statistics and Immigration Bureau. (1941). Statistical supplement to Washington, its people, products & resources (1940 ed.). Published by Belle Reeves, Secretary of State.
توثيق أسلوب شيكاغو (الطبعة السابعة عشر)Washington (State). Statistics and Immigration Bureau, Washington (State). Office of the Secretary of State, Washington (State). Office of the Secretary of State, و Washington (State). Statistics and Immigration Bureau. Statistical Supplement to Washington, Its People, Products & Resources. 1940 ed. [Olympia, Wash.]: Published by Belle Reeves, Secretary of State, 1941.
توثيق جمعية اللغة المعاصرة MLA (الطبعة الثامنة)Washington (State). Statistics and Immigration Bureau, et al. Statistical Supplement to Washington, Its People, Products & Resources. 1940 ed. Published by Belle Reeves, Secretary of State, 1941.