توثيق جمعية علم النفس الأمريكية APA (الطبعة السابعة)

Manier, E. (1978). The young Darwin and his cultural circle: A study of influences which helped shape the language and logic of the first drafts of the theory of natural selection. Reidel.

توثيق أسلوب شيكاغو (الطبعة السابعة عشر)

Manier, Edward. The Young Darwin and His Cultural Circle: A Study of Influences Which Helped Shape the Language and Logic of the First Drafts of the Theory of Natural Selection. Dordrecht [u.a.]: Reidel, 1978.

توثيق جمعية اللغة المعاصرة MLA (الطبعة الثامنة)

Manier, Edward. The Young Darwin and His Cultural Circle: A Study of Influences Which Helped Shape the Language and Logic of the First Drafts of the Theory of Natural Selection. Reidel, 1978.