MLA

Gould, George, 1807-1868, author. Manuscript notes of lectures by James Gould, at the Litchfield Law School, taken circa 1830, by George Gould. v.3. [1830?]. https://collections.library.yale.edu/catalog/16131266.

APA, 6th edition

Gould, George, 1807-1868, author. (["v.3"])([1830?])[Manuscript notes of lectures by James Gould, at the Litchfield Law School, taken circa 1830, by George Gould]. https://collections.library.yale.edu/catalog/16131266.