APA (7th ed.) Citation

Frey, B., Schwendi, S. v., Marquardus Eichstadianorum Praesul, S. P., & Kilian, W. (1639). Causa Efficiens Speculative Operans.

Chicago Style (17th ed.) Citation

Frey, Bernhard, Stephan von Schwendi, S.R.I. Princeps Marquardus Eichstadianorum Praesul, and Wolf Kilian. Causa Efficiens Speculative Operans. [S.l.], 1639.

MLA (9th ed.) Citation

Frey, Bernhard, et al. Causa Efficiens Speculative Operans. 1639.

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