@book{36106,
	author = {Silverman, David,},
	title = {Doing qualitative research :},
	publisher = {Sage Publications,},
	year = {2005.},
	address = {London ;},
	edition = {2nd ed.},
	url = {http://catdir.loc.gov/catdir/enhancements/fy0657/2004095426-t.html}
}