Cite

Students posing with Yale mascot, Handsome Dan.

MLA

Students Posing with Yale Mascot, Handsome Dan. 1999. https://collections.library.yale.edu/catalog/10011837.

APA, 6th edition

Students posing with Yale mascot, Handsome Dan. (1999). [Books (part of)]. https://collections.library.yale.edu/catalog/10011837.