APA stil citiranja

Bird, S., Klein, E., & Loper, E. (2009). Natural language processing with Python: Natural language processing with Python. Sebastopol, CA: O'Reilly.

Chicago stil citiranja

Bird, Steven, Ewan Klein, and Edward Loper. Natural language processing with Python: Natural language processing with Python. Sebastopol, CA: O'Reilly, 2009.

MLA stil citiranja

Bird, Steven, Ewan Klein, and Edward Loper. Natural language processing with Python: Natural language processing with Python. Sebastopol, CA: O'Reilly, 2009.