APA (7th ed.) Citation

Kretschmer, V., Karger, R., & Weippert-Kretschmer, M. Emergency and massive transfusion.

Chicago Style (17th ed.) Citation

Kretschmer, V., R. Karger, and M. Weippert-Kretschmer. Emergency and Massive Transfusion.

MLA (9th ed.) Citation

Kretschmer, V., et al. Emergency and Massive Transfusion.