@book{103149,
	author = {Collins, Peter, and ebrary, Inc.},
	title = {Modals and quasi-modals in English},
	publisher = {Rodopi,},
	year = {2009.},
	series = {Language and computers : studies in practical linguistics ;},
	address = {Amsterdam ;},
	url = {http://site.ebrary.com/lib/rucke/Doc?id=10380471}
}