Cita APA (7th ed.)

Grass, G. n., & Heim, M. H. (2007). Peeling the onion (First U.S. edition.). Harcourt.

Cita Chicago (17th ed.)

Grass, G nter, i Michael Henry Heim. Peeling the Onion. First U.S. edition. Orlando: Harcourt, 2007.

Cita MLA (9th ed.)

Grass, G nter, i Michael Henry Heim. Peeling the Onion. First U.S. edition. Harcourt, 2007.