APA (7th ed.) Citation

Pfaff, L., & Eckmann, S. (2017). Clocks and clouds: The architecture of Escher GuneWardena. Birkhauser.

Chicago Style (17th ed.) Citation

Pfaff, Lilian, and Sabine Eckmann. Clocks and Clouds: The Architecture of Escher GuneWardena. Basel: Birkhauser, 2017.

MLA (9th ed.) Citation

Pfaff, Lilian, and Sabine Eckmann. Clocks and Clouds: The Architecture of Escher GuneWardena. Birkhauser, 2017.

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