PERKINS, Jacob, 2014. Python 3 text processing with NLTK 3 cookbook : over 80 practical recipes on natural language processing techniques using Python’s NLTK 3.0. 2. edition. Birmingham: Packt Publ. ISBN 9781782167853.
Elsevier - Harvard (with titles)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, 2. edition. ed, Quick answers to common problems. Packt Publ., Birmingham.
American Psychological Association 7th editionPerkins, J. (ca. 2014). Python 3 text processing with NLTK 3 cookbook : over 80 practical recipes on natural language processing techniques using Python’s NLTK 3.0 [Book]. In Quick answers to common problems (2. edition). Packt Publ.
Springer - Basic (author-date)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, 2. edition. Packt Publ., Birmingham
Juristische Zitierweise (Stüber) (Deutsch)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, 2. edition , Birmingham 2014.