@book{205000,
	author = {Silverman, David,},
	title = {Interpreting qualitative data},
	publisher = {SAGE Publications},
	year = {c2006.},
	address = {London},
	edition = {3rd ed.},
	url = {http://www.loc.gov/catdir/enhancements/fy0660/2006920650-d.html}
}