Cite

Portraits of Mark Twain (Samuel L. Clemens) 1835-1910

MLA

Portraits of Mark Twain (Samuel L. Clemens) 1835-1910. 1876. https://collections.library.yale.edu/catalog/11872828.

APA, 6th edition

Portraits of Mark Twain (Samuel L. Clemens) 1835-1910. (1876). [Photographic prints, Photographs, Portraits]. https://collections.library.yale.edu/catalog/11872828.