Letter from Dr. VK Volk to “Friends” about his upcoming trip to the USSR, Rumania, Vienna, and Munich, 1972-09-01, Box: 1 - Volk, Vladimir Konstantin Dr., Folder: 3 - Correspondence. Public Health and Hospitals, RG-PUBLIC-HEALTH. Hoyt Library Archives. https://archive.saginawlibrary.org/repositories/2/archival_objects/25958 Accessed April 15, 2025.