@book{36052,
	author = {Doran, Rodney L. and ebrary, Inc.},
	title = {Science educator's guide to laboratory assessment},
	publisher = {National Science Teachers Association,},
	year = {c2002.},
	address = {Arlington, Va. :},
	edition = {2nd enlarged ed.},
	url = {http://site.ebrary.com/lib/rucke/Doc?id=10240822}
}