APA (7th ed.) Zitazioa

Epstein, R. L. (1979). Degrees of unsolvability: Structure and theory. Springer-Verlag.

Chicago Style (17th ed.) Zitazioa

Epstein, Richard L. Degrees of Unsolvability: Structure and Theory. Berlín: Springer-Verlag, 1979.

MLA (9th ed.) Zitazioa

Epstein, Richard L. Degrees of Unsolvability: Structure and Theory. Springer-Verlag, 1979.