Cita APA (7th ed.)

Popper, K. (1961). The logic scientific discovery. Science.

Cita Chicago (17th ed.)

Popper, Karl. The Logic Scientific Discovery. New York, Estados Unidos: Science, 1961.

Cita MLA (9th ed.)

Popper, Karl. The Logic Scientific Discovery. Science, 1961.

Atenció: Aquestes cites poden no estar 100% correctes.