@book{176856,
	author = {Bass, Hyman, and ebrary, Inc.},
	title = {Studying classroom teaching as a medium for professional development},
	publisher = {National Academy Press,},
	year = {c2002.},
	address = {Washington, DC :},
	note = {"Mathematical Sciences Education Board/Center for Education/Division of Behavioral and Social Sciences and Education, U.S. National Commission on Mathematics Instruction/Board on International Scientific Organizations/Policy and Global Affairs Division, National Research Council."},
	url = {http://site.ebrary.com/lib/rucke/Doc?id=10032443}
}