APA (7th ed.) Citation

Hamilton, A., Gramont, P., & Fea, A. (1906). Memoirs of Count Gramont. Bickers.

Chicago Style (17th ed.) Citation

Hamilton, Anthony, Philibert Gramont, and Allan Fea. Memoirs of Count Gramont. Lond.: Bickers, 1906.

MLA (8th ed.) Citation

Hamilton, Anthony, et al. Memoirs of Count Gramont. Bickers, 1906.