@book{63985,
	author = {Maurer, Jay.},
	title = {Focus on grammar.},
	publisher = {Pearson Longman,},
	year = {c2006-},
	address = {White Plains, NY :},
	edition = {3rd ed.},
	url = {http://www.loc.gov/catdir/toc/ecip059/2005007655.html}
}