APA (7th ed.) Citation

Pfundtner, H., Neubert, R., & Medicus, F. A. I. RV, II. a.

Chicago Style (17th ed.) Citation

Pfundtner, Hans, Reinhard Neubert, and Franz Albrecht Medicus. I. RV, II. a.

MLA (8th ed.) Citation

Pfundtner, Hans, et al. I. RV, II. a.