APA (7th ed.) Citation

Barker, S., & Nilsson, M. (2019). 50 things to see in the sky. Princeton Architectural Press.

Chicago Style (17th ed.) Citation

Barker, Sarah, and Maria Nilsson. 50 Things to See in the Sky. New York: Princeton Architectural Press, 2019.

MLA (9th ed.) Citation

Barker, Sarah, and Maria Nilsson. 50 Things to See in the Sky. Princeton Architectural Press, 2019.