Washington (State). Statistics and Immigration Bureau & Giles, H. F. (1918). Statistical abstract of the state of Washington.
Cita Chicago Style (17a ed.)Washington (State). Statistics and Immigration Bureau y Harry F. Giles. Statistical Abstract of the State of Washington. Olympia, Wash, 1918.
Cita MLA (8a ed.)Washington (State). Statistics and Immigration Bureau y Harry F. Giles. Statistical Abstract of the State of Washington. 1918.
Precaución: Estas citas no son 100% exactas.