Cita APA (7th ed.)

Fitzenberger, B., & Kohn, K. (2008). Union Density and Varieties of Coverage: The Anatomy of Union Wage Effects in Germany.

Cita Chicago (17th ed.)

Fitzenberger, Bernd, i Karsten Kohn. Union Density and Varieties of Coverage: The Anatomy of Union Wage Effects in Germany. Düsseldorf, 2008.

Cita MLA (8th ed.)

Fitzenberger, Bernd, i Karsten Kohn. Union Density and Varieties of Coverage: The Anatomy of Union Wage Effects in Germany. 2008.