APA (7th ed.) Citation

An, H. S., & Simpson, J. M. (1994). Surgery of the cervical spine. Martin Dunitz.

Chicago Style (17th ed.) Citation

An, Howard S., and J. Michael Simpson. Surgery of the Cervical Spine. London: Martin Dunitz, 1994.

MLA (9th ed.) Citation

An, Howard S., and J. Michael Simpson. Surgery of the Cervical Spine. Martin Dunitz, 1994.