APA (7. basım) Alıntı
Barna, G. (1991). What Americans believe: An annual survey of values and religious views in the United States. Regal Books.
Chicago Style (17. basım) Atıf
Barna, George. What Americans Believe: An Annual Survey of Values and Religious Views in the United States. California: Regal Books, 1991.
MLA (9th ed.) Atıf
Barna, George. What Americans Believe: An Annual Survey of Values and Religious Views in the United States. Regal Books, 1991.
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