APA (7th ed.) Citation

Darwin, B., & Darwin, E. (1938). Oboli, Boboli, and Little Joboli. Country Life.

Chicago Style (17th ed.) Citation

Darwin, Bernard, and Elinor Darwin. Oboli, Boboli, and Little Joboli. London: Country Life, 1938.

MLA (9th ed.) Citation

Darwin, Bernard, and Elinor Darwin. Oboli, Boboli, and Little Joboli. Country Life, 1938.