APA (7th ed.) Citation

Zipf, G. K. (1999). The psycho-biology of language: An introduction to dynamic philology (Repr.). Routledge.

Chicago Style (17th ed.) Citation

Zipf, George Kingsley. The Psycho-biology of Language: An Introduction to Dynamic Philology. Repr. London: Routledge, 1999.

MLA (9th ed.) Citation

Zipf, George Kingsley. The Psycho-biology of Language: An Introduction to Dynamic Philology. Repr. Routledge, 1999.

Warning: These citations may not always be 100% accurate.