APA (7th ed.) Citation

Say, T., & Ord, G. (1826). A new genus of mammalia proposed: And a description of the species upon which it is founded. W. Phillips.

Chicago Style (17th ed.) Citation

Say, Thomas, and George Ord. A New Genus of Mammalia Proposed: And a Description of the Species upon Which It Is Founded. London: W. Phillips, 1826.

MLA (8th ed.) Citation

Say, Thomas, and George Ord. A New Genus of Mammalia Proposed: And a Description of the Species upon Which It Is Founded. W. Phillips, 1826.