APA (7th ed.) Citation

O'Hair, M. M. (1980). Why I am an atheist: Including: A history of materialism (Rev. ed.). American Atheist Press.

Chicago Style (17th ed.) Citation

O'Hair, Madalyn M. Why I Am an Atheist: Including: A History of Materialism. Rev. ed. Austin, Tex: American Atheist Press, 1980.

MLA (8th ed.) Citation

O'Hair, Madalyn M. Why I Am an Atheist: Including: A History of Materialism. Rev. ed. American Atheist Press, 1980.