Cite

Mondrian, Piet

MLA

Winston, Lydia, 1897-1989. Mondrian, Piet. Box 69, folder 1069. undated. https://collections.library.yale.edu/catalog/2043788.

APA, 6th edition

Winston, Lydia, 1897-1989. (["Box 69, folder 1069"])(undated)[Mondrian, Piet]. https://collections.library.yale.edu/catalog/2043788.