87. Ehrlich, Heinrich. The Struggle for Revolutionary Socialism, 1934

87. Ehrlich, Heinrich. The Struggle for Revolutionary Socialism, 1934, Box: 2. Leon A. Pryzbylinski, Collector, Pamphlets and Other Material Regarding Labor History and the Cooperative Movement, A&M 2056. West Virginia and Regional History Center. https://archives.lib.wvu.edu/repositories/2/archival_objects/193224 Accessed December 23, 2024.