@book{137627,
	author = {Zikmund, William G.},
	title = {Business research methods /},
	publisher = {Dryden Press,},
	year = {c2000.},
	address = {Fort Worth :},
	edition = {6th ed.},
	url = {http://www.loc.gov/catdir/enhancements/fy1514/99064499-b.html}
}