MLA

Huestis, C. P. (Charles P.), artist. Assassination of James King of William ; Surrender of Jas. P. Casey and Charles Cora to the Vigilance Committee, on Sunday, May 18th, 1856. [1856?]. https://collections.library.yale.edu/catalog/2015929.

APA, 6th edition

Huestis, C. P. (Charles P.), artist. ([1856?])[Assassination of James King of William ; Surrender of Jas. P. Casey and Charles Cora to the Vigilance Committee, on Sunday, May 18th, 1856]. https://collections.library.yale.edu/catalog/2015929.