Course of instruction for freshman, sophomore, junior and senior classes.
MLA
University, Yale. Course of Instruction for Freshman, Sophomore, Junior and Senior Classes. 1828. https://collections.library.yale.edu/catalog/10020140.
APA, 6th edition
University, Y. (1828). Course of instruction for freshman, sophomore, junior and senior classes. [Books (part of)]. https://collections.library.yale.edu/catalog/10020140.