Παραπομπή APA

Hintikka, J. (1996). Principles of mathematics revisited. Cambridge University Press.

Παραπομπή Chicago Style

Hintikka, Jaakko. Principles of Mathematics Revisited. Cambridge ; New York: Cambridge University Press, 1996.

Παραπομπή MLA

Hintikka, Jaakko. Principles of Mathematics Revisited. Cambridge University Press, 1996.