@book{1781,
	author = {Halliday, M. A. K. and Webster, Jonathan,},
	title = {Linguistic studies of text and discourse /},
	publisher = {Continuum,},
	year = {2002.},
	series = {The collected works of M.A.K. Halliday ;},
	address = {London ;},
	url = {http://www.loc.gov/catdir/enhancements/fy1213/2004296146-b.html}
}