APA (7th ed.) Citation

Kemmerling, A. (2004). "As it were pictures": On the two-faced nature of Cartesian ideas. Perception and reality.

Chicago Style (17th ed.) Citation

Kemmerling, Andreas. ""As It Were Pictures": On the Two-faced Nature of Cartesian Ideas." Perception and Reality 2004.

MLA (9th ed.) Citation

Kemmerling, Andreas. ""As It Were Pictures": On the Two-faced Nature of Cartesian Ideas." Perception and Reality, 2004.

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