@book{70038,
	author = {Coffey, Amanda and Atkinson, Paul},
	title = {Making sense of qualitative data  complementary research strategies},
	publisher = {Sage Publications},
	year = {1996},
	address = {Thousand Oaks (California, Estados Unidos)},
	url = {http://www.loc.gov/catdir/enhancements/fy0655/95041813-t.html}
}