MLA

Schreiber, Eleonora, and playing card maker. Kinderkarten. E. S., 0AD. https://collections.library.yale.edu/catalog/31906057.

APA, 6th edition

Schreiber, E., & playing card maker. (0 C.E.). Kinderkarten [Specimens, Playing cards]. E. S. https://collections.library.yale.edu/catalog/31906057.