Cita APA (7a ed.)
Barna, G. (1991). What Americans believe: An annual survey of values and religious views in the United States. Regal Books.
Cita Chicago Style (17a ed.)
Barna, George. What Americans Believe: An Annual Survey of Values and Religious Views in the United States. California: Regal Books, 1991.
Cita MLA (9a ed.)
Barna, George. What Americans Believe: An Annual Survey of Values and Religious Views in the United States. Regal Books, 1991.
Precaución: Estas citas no son 100% exactas.