AO
Nueva York: Pioneer Publishers, 1936.
Nueva York: Merit Publishers, 1968.
Leiden: Brill, 2021.
Nueva York: Pioneer Publishers, 1943.
Nueva York: Pathfinder Press, 1958.
Nueva York: Pathfinder Press, 1973.
Nueva York: Pathfinder Press, 1975.
Nueva York: Prometheus Research Library, 1992.
Nueva York: Pioneer Publishers, 1944.