Popper, K. (1961). The logic scientific discovery. Science.
Cita Chicago Style (17a ed.)Popper, Karl. The Logic Scientific Discovery. New York, Estados Unidos: Science, 1961.
Cita MLA (9a ed.)Popper, Karl. The Logic Scientific Discovery. Science, 1961.
Rhybudd: Mae'n bosib nad yw'r dyfyniadau hyn bob amser yn 100% cywir.