Seidel, H. (2015). "Guest workers" and trade union politics in the Ruhr coalfield from the late 1950s to the early 1980s.
Chicago-Zitierstil (17. Ausg.)Seidel, Hans-Christoph. "Guest Workers" and Trade Union Politics in the Ruhr Coalfield from the Late 1950s to the Early 1980s. 2015.
MLA-Zitierstil (9. Ausg.)Seidel, Hans-Christoph. "Guest Workers" and Trade Union Politics in the Ruhr Coalfield from the Late 1950s to the Early 1980s. 2015.
Achtung: Diese Zitate sind unter Umständen nicht zu 100% korrekt.