'O' general
MLA
Korvin-Piotrovskiĭ, Vladimir Lʹvovich, 1891-1966. 'O' general. Box 11, folder 235. 1928-1943. https://collections.library.yale.edu/catalog/17278863.
APA, 6th edition
Korvin-Piotrovskiĭ, Vladimir Lʹvovich, 1891-1966. (["Box 11, folder 235"])(1928-1943)['O' general]. https://collections.library.yale.edu/catalog/17278863.