MLA

Rowlandson, Thomas, 1756-1827. Frontispiece. Volume 2 | Folder II-51a. [n.d.]. https://collections.library.yale.edu/catalog/11791474.

APA, 6th edition

Rowlandson, Thomas, 1756-1827. (["Volume 2 | Folder II-51a"])([n.d.])[Frontispiece]. https://collections.library.yale.edu/catalog/11791474.