Παραπομπή APA

Girard, J. (1989). Proofs and types. Cambridge University Press.

Παραπομπή Chicago Style

Girard, Jean-Yves. Proofs and Types. Cambridge [England] ; New York: Cambridge University Press, 1989.

Παραπομπή MLA

Girard, Jean-Yves. Proofs and Types. Cambridge University Press, 1989.