Sulloway, F. J. Darwin's early intellectual development: An overview of the "beagle voyage" (1831-1836) / Frank J. Sulloway. The Darwinian heritage : [incl. proceed. of the Charles Darwin Centenary Conference, Florence Center for the History and Philosophy of Science, June 1982].(1985).
शिकागो शैली (17वां संस्करण) प्रशस्ति पत्रSulloway, Frank J. "Darwin's Early Intellectual Development: An Overview of the "Beagle Voyage" (1831-1836) / Frank J. Sulloway." The Darwinian Heritage : [incl. Proceed. of the Charles Darwin Centenary Conference, Florence Center for the History and Philosophy of Science, June 1982].(1985) .
एमएलए (8वां संस्करण) प्रशस्ति पत्रSulloway, Frank J. "Darwin's Early Intellectual Development: An Overview of the "Beagle Voyage" (1831-1836) / Frank J. Sulloway." The Darwinian Heritage : [incl. Proceed. of the Charles Darwin Centenary Conference, Florence Center for the History and Philosophy of Science, June 1982].(1985), .