APA (7th ed.) Citation

Sewell, A., Wells, E. B., & Grimshaw, A. (1989). The annotated Black Beauty. J.A. Allen.

Chicago Style (17th ed.) Citation

Sewell, Anna, Ellen B. Wells, and Anne Grimshaw. The Annotated Black Beauty. London: J.A. Allen, 1989.

MLA (9th ed.) Citation

Sewell, Anna, et al. The Annotated Black Beauty. J.A. Allen, 1989.