APA (7th ed.) Citation

Tolstoy, L., Maude, L., & Maude, A. (1961). Childhood, boyhood and youth. Oxford University Press.

Chicago Style (17th ed.) Citation

Tolstoy, Leo, Louise Maude, and Aylmer Maude. Childhood, Boyhood and Youth. London: Oxford University Press, 1961.

MLA (9th ed.) Citation

Tolstoy, Leo, et al. Childhood, Boyhood and Youth. Oxford University Press, 1961.