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.

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.

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.