APA (7th ed.) Citation

Raymond, P. E. (2012). The Appendages, Anatomy, and Relationships of Trilobites. Project Gutenberg.

Chicago Style (17th ed.) Citation

Raymond, Percy Edward. The Appendages, Anatomy, and Relationships of Trilobites. Project Gutenberg, 2012.

MLA (9th ed.) Citation

Raymond, Percy Edward. The Appendages, Anatomy, and Relationships of Trilobites. Project Gutenberg, 2012.

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