APA (7th ed.) Citation
Musa, A., Howald, E., & Sigerist, H. E. (1927). De herba Vettonica liber.
Chicago Style (17th ed.) Citation
Musa, Antonius, Ernestus Howald, and Henricus E. Sigerist. De Herba Vettonica Liber. Lipsiae, Berolini, 1927.
MLA (9th ed.) Citation
Musa, Antonius, et al. De Herba Vettonica Liber. 1927.
Warning: These citations may not always be 100% accurate.