MLA

Bryher, 1894-1983. Algeria. Box 102, folder 3694. n.d.. https://collections.library.yale.edu/catalog/2012334.

APA, 6th edition

Bryher, 1894-1983. (["Box 102, folder 3694"])(n.d.)[Algeria]. https://collections.library.yale.edu/catalog/2012334.