APA (7th ed.) Citation

Nägeli, C. V. (2010). A Mechanico-Physiological Theory of Organic Evolution. Project Gutenberg.

Chicago Style (17th ed.) Citation

Nägeli, Carl Von. A Mechanico-Physiological Theory of Organic Evolution. Project Gutenberg, 2010.

MLA (9th ed.) Citation

Nägeli, Carl Von. A Mechanico-Physiological Theory of Organic Evolution. Project Gutenberg, 2010.

Warning: These citations may not always be 100% accurate.