Durant, J. R. The ascent of nature in Darwin's "Descent of man": John R. Durant. 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)Durant, John R. "The Ascent of Nature in Darwin's "Descent of Man": John R. Durant." 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)Durant, John R. "The Ascent of Nature in Darwin's "Descent of Man": John R. Durant." The Darwinian Heritage : [incl. Proceed. of the Charles Darwin Centenary Conference, Florence Center for the History and Philosophy of Science, June 1982].(1985), .