Rudwick, M. J. S. Darwin and the world of geology: Martin J. S. Rudwick. The Darwinian heritage : [incl. proceed. of the Charles Darwin Centenary Conference, Florence Center for the History and Philosophy of Science, June 1982].(1985).
توثيق أسلوب شيكاغو (الطبعة السابعة عشر)Rudwick, Martin J. S. "Darwin and the World of Geology: Martin J. S. Rudwick." The Darwinian Heritage : [incl. Proceed. of the Charles Darwin Centenary Conference, Florence Center for the History and Philosophy of Science, June 1982].(1985) .
توثيق جمعية اللغة المعاصرة MLA (الطبعة الثامنة)Rudwick, Martin J. S. "Darwin and the World of Geology: Martin J. S. Rudwick." The Darwinian Heritage : [incl. Proceed. of the Charles Darwin Centenary Conference, Florence Center for the History and Philosophy of Science, June 1982].(1985), .