APA (7th ed.) Citation

Matthew, W. D., Brown, B., & Osborn, H. F. (2006). Dinosaurs With Special Reference to the American Museum Collections. Project Gutenberg.

Chicago Style (17th ed.) Citation

Matthew, William Diller, Barnum Brown, and Henry Fairfield Osborn. Dinosaurs With Special Reference to the American Museum Collections. Project Gutenberg, 2006.

MLA (9th ed.) Citation

Matthew, William Diller, et al. Dinosaurs With Special Reference to the American Museum Collections. Project Gutenberg, 2006.

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