@book{12705,
	author = {Lorbeer, George C.},
	title = {Science activities for middle school students /},
	publisher = {McGraw-Hill,},
	year = {c2000.},
	address = {Boston :},
	edition = {2nd ed.},
	note = {Includes index.},
	url = {http://www.loc.gov/catdir/description/mh023/99035891.html}
}