Cita APA (7a ed.)

Russell, B. (1972). The principles of mathematics. George Allen & Unwin.

Cita Chicago Style (17a ed.)

Russell, Bertrand. The Principles of Mathematics. London: George Allen & Unwin, 1972.

Cita MLA (9a ed.)

Russell, Bertrand. The Principles of Mathematics. George Allen & Unwin, 1972.