Cite

_____, Liudmila (sister), outgoing

MLA

Korvin-Piotrovskiĭ, Vladimir Lʹvovich, 1891-1966. _____, Liudmila (sister), outgoing. Box 2, folder 64. 1931. https://collections.library.yale.edu/catalog/16601459.

APA, 6th edition

Korvin-Piotrovskiĭ, Vladimir Lʹvovich, 1891-1966. (["Box 2, folder 64"])(1931)[_____, Liudmila (sister), outgoing]. https://collections.library.yale.edu/catalog/16601459.