Cita APA (7th ed.)

Popper, K. R. (1963). Conjectures and refutations: the growth: Of scientific knowledge (5th ed.). Routledge.

Cita Chicago (17th ed.)

Popper, Karl R. Conjectures and Refutations: The Growth: Of Scientific Knowledge. 5th ed. London: Routledge, 1963.

Cita MLA (9th ed.)

Popper, Karl R. Conjectures and Refutations: The Growth: Of Scientific Knowledge. 5th ed. Routledge, 1963.