APA (7th ed.) Citation

Sterling, G., Sinclair, M. C. K., & Sinclair, U. (1928). Sonnets to Craig. A. & C. Boni.

Chicago Style (17th ed.) Citation

Sterling, George, Mary Craig Kimbrough Sinclair, and Upton Sinclair. Sonnets to Craig. New York: A. & C. Boni, 1928.

MLA (9th ed.) Citation

Sterling, George, et al. Sonnets to Craig. A. & C. Boni, 1928.