APA (7th ed.) Zitazioa

Popper, K. R. Realism and the aim of science. Routledge.

Chicago Style (17th ed.) Zitazioa

Popper, Karl R. Realism and the Aim of Science. London: Routledge.

MLA (9th ed.) Zitazioa

Popper, Karl R. Realism and the Aim of Science. Routledge.