Cita APA (7a ed.)

Birnbacher, D. (1997). Okophilosophie. Philipp Reclam Jun.

Cita Chicago Style (17a ed.)

Birnbacher, Dieter. Okophilosophie. Stuttgart: Philipp Reclam Jun, 1997.

Cita MLA (9a ed.)

Birnbacher, Dieter. Okophilosophie. Philipp Reclam Jun, 1997.