APA (7th ed.) Citation

Popper, K. R. (1969). Conjectures and refutations: The growth of scientific knowledge (3. ed. (rev.).). Routledge & Paul.

Chicago Style (17th ed.) Citation

Popper, Karl R. Conjectures and Refutations: The Growth of Scientific Knowledge. 3. ed. (rev.). London: Routledge & Paul, 1969.

MLA (9th ed.) Citation

Popper, Karl R. Conjectures and Refutations: The Growth of Scientific Knowledge. 3. ed. (rev.). Routledge & Paul, 1969.