APA (7th ed.) Citation

Niethard, F. U., & Pfeil, J. Orthopädie.

Chicago Style (17th ed.) Citation

Niethard, F. U., and J. Pfeil. Orthopädie.

MLA (9th ed.) Citation

Niethard, F. U., and J. Pfeil. Orthopädie.

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