APA (7th ed.) Citation

Dawson, J. W. (2011). The Chain of Life in Geological Time A Sketch of the Origin and Succession of Animals and Plants. Project Gutenberg.

Chicago Style (17th ed.) Citation

Dawson, John William. The Chain of Life in Geological Time A Sketch of the Origin and Succession of Animals and Plants. Project Gutenberg, 2011.

MLA (9th ed.) Citation

Dawson, John William. The Chain of Life in Geological Time A Sketch of the Origin and Succession of Animals and Plants. Project Gutenberg, 2011.

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