@book{199635,
	author = {Perecman, Ellen.},
	title = {A handbook for social science field research},
	publisher = {Sage Publications},
	year = {c2006.},
	address = {Thousand Oaks, Calif.},
	url = {http://www.loc.gov/catdir/toc/ecip0517/2005022714.html}
}