@book{73455,
	author = {Loberger, Gordon J. and Shoup, Kate},
	title = {Webster's New World English grammar handbook},
	publisher = {Wiley},
	year = {c2009},
	address = {Hoboken (Nueva Jersey, Estados Unidos)},
	edition = {2nd ed.},
	note = {Incluye índice.},
	url = {http://www.loc.gov/catdir/enhancements/fy0913/2009000001-t.html}
}