APA (7th ed.) Citation

Ferguson, K. (1991). Black holes in spacetime. F. Watts.

Chicago Style (17th ed.) Citation

Ferguson, Kitty. Black Holes in Spacetime. New York: F. Watts, 1991.

MLA (9th ed.) Citation

Ferguson, Kitty. Black Holes in Spacetime. F. Watts, 1991.

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