Cita APA (7a ed.)

Lutz, M., & Ascher, D. (1999). Learning Python. O'Reilly.

Cita Chicago Style (17a ed.)

Lutz, Mark, y David Ascher. Learning Python. Beijing: O'Reilly, 1999.

Cita MLA (8a ed.)

Lutz, Mark, y David Ascher. Learning Python. O'Reilly, 1999.