The father-in-law of Moses (Exod. 3: 1) and a Midianite. He gave Moses advice on the structure of legal administration (Exod. 18). Elsewhere (e.g. Exod. 2: 18) Moses' father-in-law is called Reuel and Hobab.
Citation for Jethro
Citation styles are based on the Chicago Manual of Style, 15th Ed., and the MLA Style Manual, 2nd Ed..
MLA
"Jethro." 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/e1003>.
Chicago
"Jethro." In A Dictionary of the Bible. , edited by W. R. F. Browning. Oxford Biblical Studies Online, http://www.oxfordbiblicalcstudies.com/article/opr/t94/e1003 (accessed May 20, 2013).