@book{7918,
	author = {Zikmund, William G},
	title = {Business research methods /},
	publisher = {Cengage Learning,},
	year = {2013.},
	address = {Delhi:},
	edition = {8th ed.},
	url = {http://www.loc.gov/catdir/enhancements/fy1102/2002020827-b.html}
}