MLA

Metallic-Tractors [Graphic]. Im Verlage des Industrie-Comptoirs, 0AD. https://collections.library.yale.edu/catalog/17339808.

APA, 6th edition

Metallic-tractors [graphic]. (0 C.E.). [Caricatures and cartoons, Periodical illustrations, Satires (Visual works) England 1801, Aquatints Germany Weimar 1802, Etchings Germany Weimar 1802, Engravings Germany Weimar 1802]. Im Verlage des Industrie-Comptoirs. https://collections.library.yale.edu/catalog/17339808.