MLA

Koba, 1848-1880. Drawing in graphite with watercolor of a beaded Kiowa Indian strike-a-lite bag, between two hour-glass motifs. volume 1, page 129. circa 1878-1880. https://collections.library.yale.edu/catalog/33234047.

APA, 6th edition

Koba, 1848-1880. (["volume 1, page 129"])(circa 1878-1880)[Drawing in graphite with watercolor of a beaded Kiowa Indian strike-a-lite bag, between two hour-glass motifs]. https://collections.library.yale.edu/catalog/33234047.