Cita APA (7a ed.)

Russell, B. (1961). Sceptical essays (2nd impression.). Unwin Books.

Cita Chicago Style (17a ed.)

Russell, Bertrand. Sceptical Essays. 2nd impression. London: Unwin Books, 1961.

Cita MLA (9a ed.)

Russell, Bertrand. Sceptical Essays. 2nd impression. Unwin Books, 1961.