Hull, D. L. Darwin's science and Victorian philosophy of science: David L. Hull. The Cambridge Companion to Darwin.(2006).
शिकागो शैली (17वां संस्करण) प्रशस्ति पत्रHull, David L. "Darwin's Science and Victorian Philosophy of Science: David L. Hull." The Cambridge Companion to Darwin.(2006) .
एमएलए (8वां संस्करण) प्रशस्ति पत्रHull, David L. "Darwin's Science and Victorian Philosophy of Science: David L. Hull." The Cambridge Companion to Darwin.(2006), .
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