@book{20171,
	author = {Fernandez, Clea. and Yoshida, Makoto,},
	title = {Lesson study :},
	publisher = {Lawrence Erlbaum Associates,},
	year = {2004.},
	address = {Mahwah, N.J. :},
	url = {http://www.loc.gov/catdir/enhancements/fy0644/2003052861-b.html}
}