Karl R. Popper. (1997). The logic of scientific discovery. Routledge.
Chicago Style aipamenaKarl R. Popper. The Logic of Scientific Discovery. London: Routledge, 1997.
MLA aipamenaKarl R. Popper. The Logic of Scientific Discovery. Routledge, 1997.
Kontuz: berrikusi erreferentzia hauek erabili aurretik.