APA (7th ed.) Citation

Russel, B. (1984). Why I am not a Christian. Free Thinkers Society.

Chicago Style (17th ed.) Citation

Russel, Bertrand. Why I Am Not a Christian. New York: Free Thinkers Society, 1984.

MLA (9th ed.) Citation

Russel, Bertrand. Why I Am Not a Christian. Free Thinkers Society, 1984.