Zürich u. New York, Oprecht, 1942, in-8°, Frontispiz + 64 S., ill., Stempel a.d. Titelbl., Hlwd. (Bibl.). /Brochure Orig.
Phone number : 41 (0)26 3223808
Zürich, Oprecht, 1943, in-8°, 136 S., Stempel a.d. Titelbl., Hlwd. (Bibl.).
Phone number : 41 (0)26 3223808
2. (Zürich, 1923), in-4°, 57 pp, orig. wrappers, sewn, b/w plates, (periodical of the Social Democratic Party of Switzerland).