APA (7th ed.) Citation

Popper, K. R. (1979). Objective knowledge: An evolutionary approach (Revised edition.). Claredon Press.

Chicago Style (17th ed.) Citation

Popper, Karl R. Objective Knowledge: An Evolutionary Approach. Revised edition. Oxford: Claredon Press, 1979.

MLA (9th ed.) Citation

Popper, Karl R. Objective Knowledge: An Evolutionary Approach. Revised edition. Claredon Press, 1979.

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