Panyushkin, Aleksandr Semyonovich, and Panyushkin. Letter from unidentified correspondent to Alexander and Mrs. Panyushkin. 28 Oct 1949. Web. 18 Apr 2021. <https://www.digitalcommonwealth.org/search/commonwealth-oai:9s1678230>.

Panyushkin, A., & Panyushkin. (1949, October 28). Letter from unidentified correspondent to Alexander and Mrs. Panyushkin [Correspondence]. Retrieved from https://www.digitalcommonwealth.org/search/commonwealth-oai:9s1678230

Panyushkin, Aleksandr Semyonovich, and Panyushkin. "Letter from unidentified correspondent to Alexander and Mrs. Panyushkin." Correspondence. October 28, 1949. Digital Commonwealth, https://www.digitalcommonwealth.org/search/commonwealth-oai:9s1678230 (accessed April 18, 2021).