APA (7th ed.) Citation

Lutz, M., & Ascher, D. (2004). Learning Python (2nd ed.). O'Reilly.

Chicago Style (17th ed.) Citation

Lutz, Mark, and David Ascher. Learning Python. 2nd ed. Sebastopol, California: O'Reilly, 2004.

MLA (9th ed.) Citation

Lutz, Mark, and David Ascher. Learning Python. 2nd ed. O'Reilly, 2004.