APA (7th ed.) Citation

Havelka, S., Lorenz, K., & Oppermann, J. K Lorenz, J. Oppermann: Kinderrheumatologie.

Chicago Style (17th ed.) Citation

Havelka, Stanislav, K. Lorenz, and J. Oppermann. K Lorenz, J. Oppermann: Kinderrheumatologie.

MLA (9th ed.) Citation

Havelka, Stanislav, et al. K Lorenz, J. Oppermann: Kinderrheumatologie.

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