Cite

Columbus puck discovering American humor

MLA

Keppler, Joseph Ferdinand, 1838-1894, Ottmann, J. Columbus puck discovering American humor. 1892 October 12. https://collections.library.yale.edu/catalog/2057226.

APA, 6th edition

Keppler, Joseph Ferdinand, 1838-1894, & Ottmann, J. (1892 October 12)[Columbus puck discovering American humor]. https://collections.library.yale.edu/catalog/2057226.