APA (7th ed.) Citation

Sacks, G. E. (1993). Degrees of unsolvability (2. ed., prepr.). Princeton Univ. Pr. [u. a.].

Chicago Style (17th ed.) Citation

Sacks, Gerald E. Degrees of Unsolvability. 2. ed., prepr. Princeton, N. J: Princeton Univ. Pr. [u. a.], 1993.

MLA (9th ed.) Citation

Sacks, Gerald E. Degrees of Unsolvability. 2. ed., prepr. Princeton Univ. Pr. [u. a.], 1993.