Cite

Tesla, N[ikola?]

MLA

Nichols, Dudley, 1895-1960. Tesla, N[ikola?]. Box 2. 1921 July 11. https://collections.library.yale.edu/catalog/32246097.

APA, 6th edition

Nichols, Dudley, 1895-1960. (["Box 2"])(1921 July 11)[Tesla, N[ikola?]]. https://collections.library.yale.edu/catalog/32246097.