Somerville, John. The Philosophy of Marxism: An Exposition. Minneapolis: Marxist Educational Press, 1967

Somerville, John. The Philosophy of Marxism: An Exposition. Minneapolis: Marxist Educational Press, 1967, Box: 4, Volume: 52. Midwest Distributors records, RH MS 949. University of Kansas. Kenneth Spencer Research Library. https://archives.lib.ku.edu/repositories/3/archival_objects/574115 Accessed March 21, 2026.