MLA

Fairholt, F. W. (Frederick William), 1814-1866, printmaker. Smelling out a rat, or, The atheistical-revolutionist disturbed in his midnight "calculations" vide a troubled conscience / [graphic]. [1868?]. https://collections.library.yale.edu/catalog/10972088.

APA, 6th edition

Fairholt, F. W. (Frederick William), 1814-1866, printmaker. ([1868?])[Smelling out a rat, or, The atheistical-revolutionist disturbed in his midnight "calculations" vide a troubled conscience / [graphic]]. https://collections.library.yale.edu/catalog/10972088.