APA (7th ed.) Citation

Gibbon, E., Sheffield, J. H., & Morley, H. (1891). Memoirs of Edward Gibbon: Written by himself and a selection from his letters. Routledge and Sons.

Chicago Style (17th ed.) Citation

Gibbon, Edward, John Holroyd Sheffield, and Henry Morley. Memoirs of Edward Gibbon: Written by Himself and a Selection from His Letters. London: Routledge and Sons, 1891.

MLA (8th ed.) Citation

Gibbon, Edward, et al. Memoirs of Edward Gibbon: Written by Himself and a Selection from His Letters. Routledge and Sons, 1891.