Cite

Badges, lanyards, and ephemera from events and film festivals

MLA

Hammer, Barbara. Badges, Lanyards, and Ephemera from Events and Film Festivals. 0AD. https://collections.library.yale.edu/catalog/17419269.

APA, 6th edition

Hammer, B. (0 C.E.). Badges, lanyards, and ephemera from events and film festivals. https://collections.library.yale.edu/catalog/17419269.