Cita APA (7a ed.)

Levy, M., & Huch, J. (2002). On ets? Proa.

Cita Chicago Style (17a ed.)

Levy, Marc, y Jaume Huch. On Ets? Barcelona: Proa, 2002.

Cita MLA (9a ed.)

Levy, Marc, y Jaume Huch. On Ets? Proa, 2002.