Style de citation APA (7e éd.)
Barna, G. (1991). What Americans believe: An annual survey of values and religious views in the United States. Regal Books.
Style de citation Chicago (17e éd.)
Barna, George. What Americans Believe: An Annual Survey of Values and Religious Views in the United States. California: Regal Books, 1991.
Style de citation MLA (9e éd.)
Barna, George. What Americans Believe: An Annual Survey of Values and Religious Views in the United States. Regal Books, 1991.
Attention : ces citations peuvent ne pas être correctes à 100%.