User:Czar/drafts/Vanguard

• Avrich, Paul (1995). Anarchist Voices: An Oral History of Anarchism in America. Princeton: Princeton University Press. ISBN 978-0-691-03412-6. OCLC 68772773.
• Cornell, Andrew (2016). "The Unpopular Front, 1930–1939". Unruly Equality: U.S. Anarchism in the Twentieth Century. Oakland: University of California Press. ISBN 978-0-520-28675-7.
• Guttmann, Allen (1974). "Vanguard". In Conlin, Joseph R. (ed.). The American Radical Press, 1880–1960. Westport, Connecticut: Greenwood Press. pp. 414–416. ISBN 0-8371-6625-X.