Westport: Greenwood Press, 1977.
Etiqueta: trotskismo
James P. Cannon and the Early Years of American Communism.
Nueva York: Prometheus Research Library, 1992.
Dog Days. James P. Cannon vs. Max Shachtman in the Communist League of America, 1931-1933.
Nueva York: Prometheus Research Library, 2002.
A.M. Gittlitz. I Want to Believe. Posadism, UFOs, and Apocalypse Communism.
Londres: Pluto Press, 2020.