MLA

Bates, Anson York, 1799-187, Gould, James, 1770-1838. Manuscript notes of lectures by James Gould, at the Litchfield Law School, taken in 1820, by Anson Bates.. 1820. https://collections.library.yale.edu/catalog/16135834.

APA, 6th edition

Bates, Anson York, 1799-187, & Gould, James, 1770-1838. (1820)[Manuscript notes of lectures by James Gould, at the Litchfield Law School, taken in 1820, by Anson Bates.]. https://collections.library.yale.edu/catalog/16135834.