Peterson, L. D. (1980). The policies and work of the KPD in the free labor unions of Rhineland-Westphalia, 1920-1924. University Microfilms International.
Chicago-Zitierstil (17. Ausg.)Peterson, Larry Dean. The Policies and Work of the KPD in the Free Labor Unions of Rhineland-Westphalia, 1920-1924. Ann Arbor, Michigan: University Microfilms International, 1980.
MLA-Zitierstil (9. Ausg.)Peterson, Larry Dean. The Policies and Work of the KPD in the Free Labor Unions of Rhineland-Westphalia, 1920-1924. University Microfilms International, 1980.
Achtung: Diese Zitate sind unter Umständen nicht zu 100% korrekt.