Dyfyniad APA

Hanson,Norwood,Russell. (1971). Observation and explanation: Guide to philosophy of science. George Allen & Unwin.

Dyfyniad Arddull Chicago

Hanson,Norwood,Russell. Observation and Explanation: Guide to Philosophy of Science. London: George Allen & Unwin, 1971.

Dyfyniad MLA

Hanson,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.