توثيق جمعية علم النفس الأمريكية APA (الطبعة السابعة)
Porter, D. M., & Graham, P. W. (2016). Darwin's sciences: How Charles Darwin voyaged from rocks to worms in his search for facts to explain how the earth, its geological features, and its inhabitants evolved. Wiley Blackwell.
توثيق أسلوب شيكاغو (الطبعة السابعة عشر)
Porter, Duncan M., و Peter W. Graham. Darwin's Sciences: How Charles Darwin Voyaged from Rocks to Worms in His Search for Facts to Explain How the Earth, Its Geological Features, and Its Inhabitants Evolved. Chichester, [England]: Wiley Blackwell, 2016.
توثيق جمعية اللغة المعاصرة MLA (الإصدار التاسع)
Porter, Duncan M., و Peter W. Graham. Darwin's Sciences: How Charles Darwin Voyaged from Rocks to Worms in His Search for Facts to Explain How the Earth, Its Geological Features, and Its Inhabitants Evolved. Wiley Blackwell, 2016.
تحذير: قد لا تكون هذه الاستشهادات دائما دقيقة بنسبة 100%.