Cite

"Nicolai Nadejine, The well-known baritone"

MLA

Nadezhin, Nikolai Alexandrovich, 1885-1959. "Nicolai Nadejine, The well-known baritone". Box 4, folder 85. [c.1928]. https://collections.library.yale.edu/catalog/33086913.

APA, 6th edition

Nadezhin, Nikolai Alexandrovich, 1885-1959. (["Box 4, folder 85"])([c.1928])["Nicolai Nadejine, The well-known baritone"]. https://collections.library.yale.edu/catalog/33086913.