Montague, W. P. (1930). Belief unbound: A Promethean religion for the modern world. Yale University Press; H. Milford, Oxford University Press.
Chicago-referens (17:e uppl.)Montague, William Pepperell. Belief Unbound: A Promethean Religion for the Modern World. New Haven, London: Yale University Press; H. Milford, Oxford University Press, 1930.
MLA-referens (8:e uppl.)Montague, William Pepperell. Belief Unbound: A Promethean Religion for the Modern World. Yale University Press; H. Milford, Oxford University Press, 1930.
Varning: dessa hänvisningar är inte alltid fullständigt riktiga.