MLA

Popper, Karl Raimund. Conjectures and Refutations the Growth of Scientific Knowledge. London, 2006.

APA

Popper, K. Raimund. (2006). Conjectures and refutations the growth of scientific knowledge. London.

Chicago

Popper, Karl Raimund Conjectures and Refutations the Growth of Scientific Knowledge. London, 2006.