APA-referens (7:e uppl.)
Barnes, M. H. (2000). Stages of thought: The co-evolution of religious thought and science. Oxford University Press.
Chicago-referens (17:e uppl.)
Barnes, Michael Horace. Stages of Thought: The Co-evolution of Religious Thought and Science. Oxford ; New York: Oxford University Press, 2000.
MLA-referens (9:e uppl.)
Barnes, Michael Horace. Stages of Thought: The Co-evolution of Religious Thought and Science. Oxford University Press, 2000.
Varning: dessa hänvisningar är inte alltid fullständigt riktiga.