MLA

Yale Law School, author, and issuing body. Yale Law School Bulletin 1890/91. Yale University, 1845. https://collections.library.yale.edu/catalog/17154414.

APA, 6th edition

Yale Law School, author, & issuing body. (1845). Yale Law School bulletin 1890/91 [Periodicals]. Yale University. https://collections.library.yale.edu/catalog/17154414.