Boer, R. (1999). Knockin' on heaven's door: The Bible and popular culture. Routledge.
芝加哥风格引文Boer, Roland. Knockin' on Heaven's Door: The Bible and Popular Culture. London ; New York: Routledge, 1999.
MLA引文Boer, Roland. Knockin' on Heaven's Door: The Bible and Popular Culture. Routledge, 1999.
警告：这些引文格式不一定是100％准确.