APA (7th ed.) Citation

Knowlton, J., & Fernández Vélez, M. J. (2009). Python. Anaya Multimedia.

Chicago Style (17th ed.) Citation

Knowlton, Jim, and María Jesús Fernández Vélez. Python. Madrid: Anaya Multimedia, 2009.

MLA (9th ed.) Citation

Knowlton, Jim, and María Jesús Fernández Vélez. Python. Anaya Multimedia, 2009.

Warning: These citations may not always be 100% accurate.