@book{110328,
	author = {DuFour, Richard, and DuFour, Rebecca Burnette.},
	title = {Essentials for principals :},
	publisher = {Solution Tree Press,},
	year = {2012.},
	series = {Essentials for principals},
	address = {Bloomington, IN :},
	note = {"A joint publication Solution Tree NAESP"}
}