APA (7th ed.) Citation

Sledge, C. B., & Poss, R. (1990). The year book of orthopedics 1990. Year Book Medical Publishers.

Chicago Style (17th ed.) Citation

Sledge, Clement B., and Robert Poss. The Year Book of Orthopedics 1990. Chicago: Year Book Medical Publishers, 1990.

MLA (8th ed.) Citation

Sledge, Clement B., and Robert Poss. The Year Book of Orthopedics 1990. Year Book Medical Publishers, 1990.