APA (7th ed.) Citation

Gaskell, W. H. (1908). The origin of vertebrates. Longmans, Green, and co..

Chicago Style (17th ed.) Citation

Gaskell, Walter Holbrook. The Origin of Vertebrates. London, New York, Bombay, Calcutta: Longmans, Green, and co., 1908.

MLA (9th ed.) Citation

Gaskell, Walter Holbrook. The Origin of Vertebrates. Longmans, Green, and co., 1908.