APA (7th ed.) Citation

Thomas, v. K., Carolus Archidux Austriae, Croesselius, J., & Widmanstetter, G. (1604). Soliloquium Animae. Widmanstadius.

Chicago Style (17th ed.) Citation

Thomas, von Kempen, Carolus Archidux Austriae, Johan Croesselius, and Georg Widmanstetter. Soliloquium Animae. Graecii Styriae: Widmanstadius, 1604.

MLA (9th ed.) Citation

Thomas, von Kempen, et al. Soliloquium Animae. Widmanstadius, 1604.

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