Cite

Ladies secretaire. / parlor chair. Pl. 14

MLA

Ackermann, Rudolph, 1764-1834. Ladies secretaire. / parlor chair. Pl. 14. I:1. 1809 March 1. https://collections.library.yale.edu/catalog/2020486.

APA, 6th edition

Ackermann, Rudolph, 1764-1834. (["I:1"])(1809 March 1)[Ladies secretaire. / parlor chair. Pl. 14]. https://collections.library.yale.edu/catalog/2020486.