APA(7版)引用形式
Barna, G. (1991). User friendly churches: What Christians need to know about the church. Regals Books.
Chicagoスタイル(17版)引用形式
Barna, George. User Friendly Churches: What Christians Need to Know About the Church. California: Regals Books, 1991.
MLA(9版)引用形式
Barna, George. User Friendly Churches: What Christians Need to Know About the Church. Regals Books, 1991.
警告: この引用は必ずしも正確ではありません.