@book{36940,
	author = {Diener, Ed. and Helliwell, John F.},
	title = {International differences in well-being},
	publisher = {Oxford University Press,},
	year = {2010.},
	address = {Oxford :},
	url = {http://dx.doi.org/10.1093/acprof:oso/9780199732739.001.0001}
}