The colourful word of AV retained by REB and NJB but changed to ‘sulphur’ in NRSV (Gen. 19: 24) for the burning yellow stones hurled down on Sodom and Gomorrah: just the sort of volcanic material found in the Dead Sea valley.
Citation for brimstone
Citation styles are based on the Chicago Manual of Style, 15th Ed., and the MLA Style Manual, 2nd Ed..
MLA
"brimstone." In A Dictionary of the Bible. Ed. W. R. F. Browning. Oxford Biblical Studies Online. May 20, 2013. <http://www.oxfordbiblicalcstudies.com/article/opr/t94/e320>.
Chicago
"brimstone." In A Dictionary of the Bible. , edited by W. R. F. Browning. Oxford Biblical Studies Online, http://www.oxfordbiblicalcstudies.com/article/opr/t94/e320 (accessed May 20, 2013).