Cite

Amsterdam [1 of 22 slides]

MLA

Erdoes, Richard, 1912-2008. Amsterdam [1 of 22 slides]. Box 76 | Ireland, Amsterdam. undated. https://collections.library.yale.edu/catalog/2099245.

APA, 6th edition

Erdoes, Richard, 1912-2008. (["Box 76 | Ireland, Amsterdam"])(undated)[Amsterdam [1 of 22 slides]]. https://collections.library.yale.edu/catalog/2099245.