APA (7th ed.) Citation

Sacks, G. E. (1966). Degrees of unsolvability. Princeton University Press.

Chicago Style (17th ed.) Citation

Sacks, Gerald E. Degrees of Unsolvability. Princeton: Princeton University Press, 1966.

MLA (9th ed.) Citation

Sacks, Gerald E. Degrees of Unsolvability. Princeton University Press, 1966.