"65 Years of Soviet Literature"
MLA
Berberova, N. (Nina), 1901-1993. "65 Years of Soviet Literature". Box 41, folder 995. 1967. https://collections.library.yale.edu/catalog/32325574.
APA, 6th edition
Berberova, N. (Nina), 1901-1993. (["Box 41, folder 995"])(1967)["65 Years of Soviet Literature"]. https://collections.library.yale.edu/catalog/32325574.