APA (7th ed.) Citation

Cox, B., & Forshaw, J. R. (2022). Black holes: The key to understanding the universe. William Collins.

Chicago Style (17th ed.) Citation

Cox, Brian, and J. R. Forshaw. Black Holes: The Key to Understanding the Universe. London: William Collins, 2022.

MLA (8th ed.) Citation

Cox, Brian, and J. R. Forshaw. Black Holes: The Key to Understanding the Universe. William Collins, 2022.