Cita APA (7a ed.)

Popper, K. R. (1972). Conjectures and refutations: The growth of scientific knowledge (4rd ed., reprint.). Routledge & Kegan Paul.

Cita Chicago Style (17a ed.)

Popper, Karl Raimund. Conjectures and Refutations: The Growth of Scientific Knowledge. 4rd ed., reprint. London: Routledge & Kegan Paul, 1972.

Cita MLA (9a ed.)

Popper, Karl Raimund. Conjectures and Refutations: The Growth of Scientific Knowledge. 4rd ed., reprint. Routledge & Kegan Paul, 1972.