Παραπομπή APA

Smullyan, R. M. (1993). Recursion theory for metamathematics. Oxford University Press.

Παραπομπή Chicago Style

Smullyan, Raymond M. Recursion Theory for Metamathematics. New York: Oxford University Press, 1993.

Παραπομπή MLA

Smullyan, Raymond M. Recursion Theory for Metamathematics. Oxford University Press, 1993.