Hanson,Norwood,Russell. (1971). Observation and explanation: Guide to philosophy of science. George Allen & Unwin.
Dyfyniad Arddull ChicagoHanson,Norwood,Russell. Observation and Explanation: Guide to Philosophy of Science. London: George Allen & Unwin, 1971.
Dyfyniad MLAHanson,Norwood,Russell. Observation and Explanation: Guide to Philosophy of Science. George Allen & Unwin, 1971.
Rhybudd: Mae'n bosib nad yw'r dyfyniadau hyn bob amser yn 100% cywir.