Cita APA (7a ed.)

Perkins, J. (2014). Python 3 text processing with NLTK 3 cookbook: Over 80 practical recipes on natural language processing techniques using Python's NLTK 3.0. Packt Pub..

Cita Chicago Style (17a ed.)

Perkins, Jacob. Python 3 Text Processing with NLTK 3 Cookbook: Over 80 Practical Recipes on Natural Language Processing Techniques Using Python's NLTK 3.0. Birmingham, UK: Packt Pub., 2014.

Cita MLA (8a ed.)

Perkins, Jacob. Python 3 Text Processing with NLTK 3 Cookbook: Over 80 Practical Recipes on Natural Language Processing Techniques Using Python's NLTK 3.0. Packt Pub., 2014.