APA (7th ed.) Citation

Keats, J., Shelley, P. B., & Shelley, M. W. (1900). John Keats and Percy Bysshe Shelley complete poetical works. Modern Library.

Chicago Style (17th ed.) Citation

Keats, John, Percy Bysshe Shelley, and Mary Wollenstonecraft Shelley. John Keats and Percy Bysshe Shelley Complete Poetical Works. New York: Modern Library, 1900.

MLA (9th ed.) Citation

Keats, John, et al. John Keats and Percy Bysshe Shelley Complete Poetical Works. Modern Library, 1900.