Cita APA (7th ed.)

Russell, B. (1992). The Principles of mathematics (2nd ed.). Routledge.

Cita Chicago (17th ed.)

Russell, Bertrand. The Principles of Mathematics. 2nd ed. London: Routledge, 1992.

Cita MLA (9th ed.)

Russell, Bertrand. The Principles of Mathematics. 2nd ed. Routledge, 1992.