@book{181391,
	author = {O'Sullivan, Christine Y. and Weiss, Andrew R. and National Center for Education Statistics.},
	title = {Student work and teacher practices in science},
	publisher = {U.S. Dept. of Education, Office of Educational Research and Improvement},
	year = {1999.},
	series = {The Nation's report card},
	address = {Washington, DC},
	note = {At head of title: National Center for Educaiton Statistics.}
}