APA (7th ed.) Citation

Goerke, L., & Pannenberg, M. (1998). Social custom, free-riders, and trade union membership in Germany and Great Britain.

Chicago Style (17th ed.) Citation

Goerke, Laszlo, and Markus Pannenberg. Social Custom, Free-riders, and Trade Union Membership in Germany and Great Britain. Berlin, 1998.

MLA (9th ed.) Citation

Goerke, Laszlo, and Markus Pannenberg. Social Custom, Free-riders, and Trade Union Membership in Germany and Great Britain. 1998.