Cite

American Horse papers

MLA

American Horse, Dakota Chief, 1840-1908, Foster, Charles, 1828-1904. American Horse papers. 1880-1896. https://collections.library.yale.edu/catalog/17289547.

APA, 6th edition

American Horse, Dakota Chief, 1840-1908, & Foster, Charles, 1828-1904. (1880-1896)[American Horse papers]. https://collections.library.yale.edu/catalog/17289547.