One of the cities whose Church is addressed in Revelation (2: 12); capital of the Roman province of Asia, and the site of ‘Satan's throne’ (Rev. 2: 13), which perhaps means that it was a centre of worship of the Roman emperor.
Citation for Pergamum
Citation styles are based on the Chicago Manual of Style, 15th Ed., and the MLA Style Manual, 2nd Ed..
MLA
"Pergamum." In A Dictionary of the Bible. Ed. W. R. F. Browning. Oxford Biblical Studies Online. May 24, 2013. <http://www.oxfordbiblicalcstudies.com/article/opr/t94/e1448>.
Chicago
"Pergamum." In A Dictionary of the Bible. , edited by W. R. F. Browning. Oxford Biblical Studies Online, http://www.oxfordbiblicalcstudies.com/article/opr/t94/e1448 (accessed May 24, 2013).