APA (7th ed.) Zitazioa

Corvi, R. (1997). An introduction to the thought of karl popper. Routledge.

Chicago Style (17th ed.) Zitazioa

Corvi, Roberta. An Introduction to the Thought of Karl Popper. London: Routledge, 1997.

MLA (9th ed.) Zitazioa

Corvi, Roberta. An Introduction to the Thought of Karl Popper. Routledge, 1997.