Cita APA (7a ed.)

Roshwald, M., & Seed, D. (2004). Level 7. University of Wisconsin Press.

Cita Chicago Style (17a ed.)

Roshwald, Mordecai, y David Seed. Level 7. Madison: University of Wisconsin Press, 2004.

Cita MLA (8a ed.)

Roshwald, Mordecai, y David Seed. Level 7. University of Wisconsin Press, 2004.