APA (7th ed.) Citation

Ruh, K., & Mertens, V. (1984). Kleine Schriften. De Gruyter.

Chicago Style (17th ed.) Citation

Ruh, Kurt, and Volker Mertens. Kleine Schriften. Berlin [u.a.]: De Gruyter, 1984.

MLA (9th ed.) Citation

Ruh, Kurt, and Volker Mertens. Kleine Schriften. De Gruyter, 1984.