MLA

Gulʹ, Roman, 1896-1986. Odoevtseva, Irina Vladimirovna. Box 83, folder 2011. 1958. https://collections.library.yale.edu/catalog/17277470.

APA, 6th edition

Gulʹ, Roman, 1896-1986. (["Box 83, folder 2011"])(1958)[Odoevtseva, Irina Vladimirovna]. https://collections.library.yale.edu/catalog/17277470.