to John Ellerman [son]
MLA
Bryher, 1894-1983. to John Ellerman [son]. Box 70, folder 2697. 1917, n.d.. https://collections.library.yale.edu/catalog/17290846.
APA, 6th edition
Bryher, 1894-1983. (["Box 70, folder 2697"])(1917, n.d.)[to John Ellerman [son]]. https://collections.library.yale.edu/catalog/17290846.