APA (7th ed.) Citation

K, K., & M, E. Orthopädie. SportMed Verlag.

Chicago Style (17th ed.) Citation

K, Keller, and Engelhardt M. Orthopädie. SportMed Verlag.

MLA (9th ed.) Citation

K, Keller, and Engelhardt M. Orthopädie. SportMed Verlag.

Warning: These citations may not always be 100% accurate.