@book{1872,
	author = {Christensen, Clayton M.},
	title = {Innovation and the general manager /},
	publisher = {Irwin/McGraw-Hill,},
	year = {c1999.},
	address = {Boston, Mass. :},
	note = {Includes index.},
	url = {http://www.loc.gov/catdir/description/mh023/98050562.html}
}