APA استشهاد

Bertrand Russell. (2010). Principles of mathematics (2nd ed.). Routledge.

استشهاد بنمط شيكاغو

Bertrand Russell. Principles of Mathematics. 2nd ed. London: Routledge, 2010.

MLA استشهاد

Bertrand Russell. Principles of Mathematics. 2nd ed. Routledge, 2010.