@book{9132,
	author = {Glaser, Robert,},
	title = {Knowing, Learning, and Instruction :},
	publisher = {L. Erlbaum Associates,},
	year = {1989.},
	address = {Hillsdale, N.J. :},
	url = {http://www.loc.gov/catdir/enhancements/fy0745/89030180-d.html}
}