Cita APA (7a ed.)

Rippe, K. P., & Schaber, P. (1998). Tugendethik. Reclam.

Cita Chicago Style (17a ed.)

Rippe, Klaus Peter, y Peter Schaber. Tugendethik. Stuttgart: Reclam, 1998.

Cita MLA (9a ed.)

Rippe, Klaus Peter, y Peter Schaber. Tugendethik. Reclam, 1998.