Die brennendste Frage - die Aktionseinheit
(Switzerland): Prometheus-Verlag, 1934. 16mo. Wraps. 45 p. Schriftenreihe der proletarischen Einheit Heft 2. [24718]
(Switzerland): Prometheus-Verlag, 1934. 16mo. Wraps. 45 p. Schriftenreihe der proletarischen Einheit Heft 2. [24718]
New York: Workers Library Publishers, 1934. 12mo. Wraps. 96 p. [72987]
New York: Workers Library Publishers, 1934. 12mo. Wraps. 96 p. [73291]
New York: Workers Library Publishers, 1934. 12mo. Wraps. 96 p. [73320]
New York: Workers Library Publishers, ca. 1933. 16mo. Wraps. 73 p. [31639]
London: British Socialist Party, ca. 1918. 12mo. Wraps. 46 p. International Socialist Library 15. [31586]
Moscow & Leningrad: Co-operative Publishing Society of Foreign Workers in the U.S.S.R., 1933. 12mo. Wraps. 124 p. 1st printing. One of 2500 copies. [31616]