@book{131897,
	author = {Westney, Paul.},
	title = {Modals and periphrastics in English :},
	publisher = {Max Niemeyer Verlag,},
	year = {1995.},
	series = {Linguistische Arbeiten,},
	address = {T�ubingen :},
	url = {http://site.ebrary.com/lib/rucke/Doc?id=10776742}
}