APA (7th ed.) Citation

Lamb, C., Lamb, M., & Lucas, E. V. (1904). The letters of Charles and Mary Lamb. Methuen.

Chicago Style (17th ed.) Citation

Lamb, Charles, Mary Lamb, and E. V. Lucas. The Letters of Charles and Mary Lamb. London: Methuen, 1904.

MLA (9th ed.) Citation

Lamb, Charles, et al. The Letters of Charles and Mary Lamb. Methuen, 1904.