American Psychological Association 6th edition

Perkins, J. [ca. 2010]. Python text processing with NLTK 2.0 cookbook : over 80 practical recipes for using Python’s NLTK suite of libraries to maximize your Natural Language Processing capabilities. In Quick answers to common problems [Book]. Birmingham [u.a.]: Packt Publ.

ISO-690 (author-date, English)

PERKINS, Jacob, 2010. Python text processing with NLTK 2.0 cookbook : over 80 practical recipes for using Python’s NLTK suite of libraries to maximize your Natural Language Processing capabilities. Birmingham [u.a.]: Packt Publ. ISBN 1849513600.

Modern Language Association 9th edition

Perkins, J. „Python text processing with NLTK 2.0 cookbook : over 80 practical recipes for using Python’s NLTK suite of libraries to maximize your Natural Language Processing capabilities“. Quick answers to common problems, book, Packt Publ., 2010.

Mohr Siebeck - Recht (Deutsch - Österreich)

Perkins, Jacob: Python text processing with NLTK 2.0 cookbook : over 80 practical recipes for using Python’s NLTK suite of libraries to maximize your Natural Language Processing capabilities, Birmingham [u.a.] 2010.

Emerald - Harvard

Perkins, J. (2010), Python text processing with NLTK 2.0 cookbook : over 80 practical recipes for using Python’s NLTK suite of libraries to maximize your Natural Language Processing capabilities, Quick answers to common problems, Bd. , Packt Publ., Birmingham [u.a.].

Achtung: Diese Zitate sind unter Umständen nicht zu 100% korrekt.