MLA

Hughes, Langston, 1902-1967. USSR, series of photographs of Central Asia, with descriptive key [in Russian]. Box 459, folder 11107. 1929, n.d.. https://collections.library.yale.edu/catalog/2017020.

APA, 6th edition

Hughes, Langston, 1902-1967. (["Box 459, folder 11107"])(1929, n.d.)[USSR, series of photographs of Central Asia, with descriptive key [in Russian]]. https://collections.library.yale.edu/catalog/2017020.