MLA

Voynich, Wilfred Michael, 1865-1930. Provenance. Box E, folder 6. 1666; 1912-1976. https://collections.library.yale.edu/catalog/32577044.

APA, 6th edition

Voynich, Wilfred Michael, 1865-1930. (["Box E, folder 6"])(1666; 1912-1976)[Provenance]. https://collections.library.yale.edu/catalog/32577044.