Fleck, L. (1979). Genesis and development of a scientific fact. London: University of Chicago press.
Dyfyniad Arddull ChicagoFleck, Ludwik. Genesis and Development of a Scientific Fact. London: University of Chicago press, 1979.
Dyfyniad MLAFleck, Ludwik. Genesis and Development of a Scientific Fact. London: University of Chicago press, 1979.
Rhybudd: Mae'n bosib nad yw'r dyfyniadau hyn bob amser yn 100% cywir.