Christmas cards
MLA
Bryher, 1894-1983. Christmas cards. Box 147, folder 5037-5038. 1933-34, n.d.. https://collections.library.yale.edu/catalog/2008289.
APA, 6th edition
Bryher, 1894-1983. (["Box 147, folder 5037-5038"])(1933-34, n.d.)[Christmas cards]. https://collections.library.yale.edu/catalog/2008289.