| H.L. Mencken (1880–1956). The American Language. 1921. |
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| f. The Far West |
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| Bruner, Helen (and Frances Francis): A Short Word-List From Wyoming, Dialect Notes, vol. iii, p. 550. |
| Chapin, Florence A.: Spanish Words That Have Become Westernisms, Editor, July 25, 1917. |
| Garrett, R. M.: A Word-List From the Northwest, Dialect Notes, vol. v, p. 54 and p. 80. |
| Harvey, Bartlett: A Word-List From the Northwest, Dialect Notes, vol. iv, p. 26 and p. 162. |
| Hayden, Marie Gladys: A Word-List From Montana, Dialect Notes, vol. iv, p. 243. |
| Lehman, Benjamin H.: A Word-List From the Northwestern United States, Dialect Notes, vol. v, p. 22. |
| McLean, John: Western Americanisms (in The Indians: Their Manners and Customs; Toronto, 1889). |
| Man, A. P., Jr.: Arizona Word-List, Dialect Notes, vol. iv, p. 164. |
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