APA način citiranja (7. izdanje)
Barna, G. (1991). User friendly churches: What Christians need to know about the church. Regals Books.
Čikaški stil citiranja (17. izdanje)
Barna, George. User Friendly Churches: What Christians Need to Know About the Church. California: Regals Books, 1991.
MLA način citiranja (9. izdanje)
Barna, George. User Friendly Churches: What Christians Need to Know About the Church. Regals Books, 1991.
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