APA (7th ed.) Citation

Kitchener, H. H. K., Rye, J. B., & Groser, H. G. (1917). Kitchener in his own words. Unwin.

Chicago Style (17th ed.) Citation

Kitchener, Horatio Herbert Kitchener, James Bacon Rye, and Horace George Groser. Kitchener in His Own Words. London: Unwin, 1917.

MLA (8th ed.) Citation

Kitchener, Horatio Herbert Kitchener, et al. Kitchener in His Own Words. Unwin, 1917.