Dyfyniad APA
London, H. I. (2008). America's secular challenge: The rise of a new national religion. Encounter Books.
Dyfyniad Arddull Chicago
London, Herbert I. America's Secular Challenge: The Rise of a New National Religion. New York: Encounter Books, 2008.
Dyfyniad MLA
London, Herbert I. America's Secular Challenge: The Rise of a New National Religion. Encounter Books, 2008.
Rhybudd: Mae'n bosib nad yw'r dyfyniadau hyn bob amser yn 100% cywir.