APA način citiranja (7. izdanje)

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

Čikaški stil citiranja (17. izdanje)

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

MLA način citiranja (8. izdanje)

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