Zipf, G. K. (1936). The psycho-biology of language: An introduction to dynamic philology. Routledge.
Citazione stile Chigago Style (17a edizione)Zipf, George Kingsley. The Psycho-biology of Language: An Introduction to Dynamic Philology. Lond.: Routledge, 1936.
Citatione MLA (8a ed.)Zipf, George Kingsley. The Psycho-biology of Language: An Introduction to Dynamic Philology. Routledge, 1936.
Attenzione: Queste citazioni potrebbero non essere precise al 100%.