@book{69489,
	author = {Pawlas, George. and Oliva, Peter F.},
	title = {Supervision for today's schools /},
	publisher = {Wiley,},
	year = {c2008.},
	series = {Wiley/Jossey-Bass education},
	address = {New York :},
	edition = {8th ed.},
	note = {Oliva's name appears first on the earlier editions.},
	url = {http://www.loc.gov/catdir/enhancements/fy0814/2007279469-b.html}
}