@book{28994,
	author = {Darling-Hammond, Linda, and ebrary, Inc.},
	title = {Preparing principals for a changing world},
	publisher = {Jossey-Bass,},
	year = {c2010.},
	address = {San Francisco, CA :},
	edition = {1st ed.},
	url = {http://site.ebrary.com/lib/rucke/Doc?id=10350132}
}