Citação norma APA

 Jurafsky, D. (2009).  Speech and language processing: An Introduction to natural language processing, computational linguistics and speech recognition.  Pearson Prentice Hall.

Citação norma Chicago

 Jurafsky, Dan.  Speech and Language Processing: An Introduction to Natural Language Processing, Computational Linguistics and Speech Recognition.  Pearson Prentice Hall, 2009.

Citação norma MLA

 Jurafsky, Dan.  Speech and Language Processing: An Introduction to Natural Language Processing, Computational Linguistics and Speech Recognition.  Pearson Prentice Hall, 2009.

Nota: a formatação da citação pode não corresponder 100% ao definido pela respectiva norma.