APA Edition Citation

Popper, K., & Hansen, T. E. e. b. (2012). Two fundamental problems of the theory of knowledge. Rouledge.

Chicago Edition Citation

Popper, Karl, and Troels Eggers; ed by Hansen. Two Fundamental Problems of the Theory of Knowledge. London: Rouledge, 2012.

MLA Edition Citation

Popper, Karl, and Troels Eggers; ed by Hansen. Two Fundamental Problems of the Theory of Knowledge. Rouledge, 2012.