APA (7th ed.) Citation

Popper, K. R. (1972). Conjectures and refutations : the growth of scientific knowledge: The growth of scientific knowledge (4th ed. (revised).). Routledge and Kegan Paul.

Chicago Style (17th ed.) Citation

Popper, Karl R. Conjectures and Refutations : The Growth of Scientific Knowledge: The Growth of Scientific Knowledge. 4th ed. (revised). London: Routledge and Kegan Paul, 1972.

MLA (9th ed.) Citation

Popper, Karl R. Conjectures and Refutations : The Growth of Scientific Knowledge: The Growth of Scientific Knowledge. 4th ed. (revised). Routledge and Kegan Paul, 1972.

Warning: These citations may not always be 100% accurate.