@book{60619,
	author = {Twidell, John and British Wind Energy Association},
	title = {A guide to small wind energy conversion systems /},
	publisher = {Cambridge University Press,},
	year = {1987},
	address = {Cambridge [Cambridgeshire] ;},
	note = {‬At head of title: British Wind Energy Association},
	url = {http://www.loc.gov/catdir/enhancements/fy1106/87010273-t.html}
}