MLA

Voynich, Wilfred Michael, 1865-1930. Provence - Marcus Marci. Box E, folder 9. 1666; 1912-1976. https://collections.library.yale.edu/catalog/32577170.

APA, 6th edition

Voynich, Wilfred Michael, 1865-1930. (["Box E, folder 9"])(1666; 1912-1976)[Provence - Marcus Marci]. https://collections.library.yale.edu/catalog/32577170.