Shankle, G. E. (1933). Washington, state name, flag, seal, song, bird, flower, and other symbols: A study based on historical documents giving the origin and significance of the state name, nicknames, motto, seal, flag, flower, bird, song, and descriptive comments on the capitol building and on some of the outstanding state histories, with facsimiles. H. W. Wilson.
Cita Chicago Style (17a ed.)Shankle, George Earlie. Washington, State Name, Flag, Seal, Song, Bird, Flower, and Other Symbols: A Study Based on Historical Documents Giving the Origin and Significance of the State Name, Nicknames, Motto, Seal, Flag, Flower, Bird, Song, and Descriptive Comments on the Capitol Building and on Some of the Outstanding State Histories, with Facsimiles. New York: H. W. Wilson, 1933.
Cita MLA (8a ed.)Shankle, George Earlie. Washington, State Name, Flag, Seal, Song, Bird, Flower, and Other Symbols: A Study Based on Historical Documents Giving the Origin and Significance of the State Name, Nicknames, Motto, Seal, Flag, Flower, Bird, Song, and Descriptive Comments on the Capitol Building and on Some of the Outstanding State Histories, with Facsimiles. H. W. Wilson, 1933.