@book{4894,
	author = {Greenfield, Tony.},
	title = {Research methods for postgraduates},
	publisher = {Arnold ;},
	year = {c2002.},
	address = {London :},
	edition = {2nd ed.},
	note = {Rev. ed. of: Research methods. 1996.},
	url = {http://www.loc.gov/catdir/enhancements/fy0614/2002282242-d.html}
}