APA (7th ed.) Citation

Schönwald, G., Gorman, J., Krafft, J., & Balduin, F. Articulorum Smalcaldicorum.

Chicago Style (17th ed.) Citation

Schönwald, Georg, Johann Gorman, Johann Krafft, and Friedrich Balduin. Articulorum Smalcaldicorum.

MLA (9th ed.) Citation

Schönwald, Georg, et al. Articulorum Smalcaldicorum.