Hanson,Norwood,Russell. (1971). Observation and explanation: Guide to philosophy of science. George Allen & Unwin.
استشهاد بنمط شيكاغوHanson,Norwood,Russell. Observation and Explanation: Guide to Philosophy of Science. London: George Allen & Unwin, 1971.
MLA استشهادHanson,Norwood,Russell. Observation and Explanation: Guide to Philosophy of Science. George Allen & Unwin, 1971.
تحذير: قد لا تكون هذه الاستشهادات دائما دقيقة بنسبة 100%.