APA (7th ed.) Citation

Newton, A., Shufeldt, R. W., Lydekker, R., Gadow, H., & Roy, C. S. (1893). A dictionary of birds. A. and C. Black.

Chicago Style (17th ed.) Citation

Newton, Alfred, Robert W. Shufeldt, Richard Lydekker, Hans Gadow, and Charles S. Roy. A Dictionary of Birds. London: A. and C. Black, 1893.

MLA (8th ed.) Citation

Newton, Alfred, et al. A Dictionary of Birds. A. and C. Black, 1893.