Dyfyniad APA
Hempel, C. G. (1965). Aspects of scientific explanation and other essays in the philosophy of science (1a ed.). The Free Press.
Dyfyniad Arddull Chicago
Hempel, Carl G. Aspects of Scientific Explanation and Other Essays in the Philosophy of Science. 1a ed. Buenos Aires: The Free Press, 1965.
Dyfyniad MLA
Hempel, Carl G. Aspects of Scientific Explanation and Other Essays in the Philosophy of Science. 1a ed. The Free Press, 1965.
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