Παραπομπή APA

Nagel, J. (2014). Knowledge: A very short introduction. O. U. P.

Παραπομπή Chicago Style

Nagel, Jennifer. Knowledge: A Very Short Introduction. Oxford: O. U. P, 2014.

Παραπομπή MLA

Nagel, Jennifer. Knowledge: A Very Short Introduction. O. U. P, 2014.