Cite

1 holograph leaf, [Matisse, me, Pablo, etc. in diagram, #107]

MLA

Stein, Gertrude, 1874-1946. 1 holograph leaf, [Matisse, me, Pablo, etc. in diagram, #107]. Box 37, folder 766. n.d.. https://collections.library.yale.edu/catalog/16708282.

APA, 6th edition

Stein, Gertrude, 1874-1946. (["Box 37, folder 766"])(n.d.)[1 holograph leaf, [Matisse, me, Pablo, etc. in diagram, #107]]. https://collections.library.yale.edu/catalog/16708282.