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 Washington, state name, flag, seal, song, bird, flower, and other symbols: A study based on historical documents giving the origin and significance of the state name, nicknames, motto, seal, flag, flower, bird, song, and descriptive comments on the capitol building and on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.
Trích dẫn kiểu Chicago (xuất bản lần thứ 7)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 Washington, State Name, Flag, Seal, Song, Bird, Flower, and Other Symbols: A Study Based on Historical Documents Giving the Origin and Significance of the State Name, Nicknames, Motto, Seal, Flag, Flower, Bird, Song, and Descriptive Comments on the Capitol Building and on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.
Trích dẫn kiểu MLA (xuất bản lần thứ 8)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 Washington, State Name, Flag, Seal, Song, Bird, Flower, and Other Symbols: A Study Based on Historical Documents Giving the Origin and Significance of the State Name, Nicknames, Motto, Seal, Flag, Flower, Bird, Song, and Descriptive Comments on the Capitol Building and on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.