APA (7th ed.) Citation

Popper, K. R. (1965). Conjectures and refutations: The growth of scientific knowledge (2. ed.). Basic Books.

Chicago Style (17th ed.) Citation

Popper, Karl R. Conjectures and Refutations: The Growth of Scientific Knowledge. 2. ed. New York: Basic Books, 1965.

MLA (9th ed.) Citation

Popper, Karl R. Conjectures and Refutations: The Growth of Scientific Knowledge. 2. ed. Basic Books, 1965.