Lua APA (7ú heag.)
Hempel, C. G., & Fetzer, J. H. (2001). The philosophy of Carl G. Hempel: Studies in science, explanation, and rationality. Oxford University Press.
Lua i Stíl Chicago (17ú heag.)
Hempel, Carl G., agus James H. Fetzer. The Philosophy of Carl G. Hempel: Studies in Science, Explanation, and Rationality. Oxford ; New York: Oxford University Press, 2001.
Lua MLA (9ú heag.)
Hempel, Carl G., agus James H. Fetzer. The Philosophy of Carl G. Hempel: Studies in Science, Explanation, and Rationality. Oxford University Press, 2001.
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