APA (7th ed.) Citation

Keats, J., & Newbolt, H. J. (1900). John Keats. T. Nelson.

Chicago Style (17th ed.) Citation

Keats, John, and Henry John Newbolt. John Keats. London: T. Nelson, 1900.

MLA (9th ed.) Citation

Keats, John, and Henry John Newbolt. John Keats. T. Nelson, 1900.