(2013). OECD Guidelines on measuring subjective well-being. OECD.
Dyfyniad Arddull ChicagoOECD Guidelines on Measuring Subjective Well-being. Paris: OECD, 2013.
Dyfyniad MLAOECD Guidelines on Measuring Subjective Well-being. OECD, 2013.
Rhybudd: Mae'n bosib nad yw'r dyfyniadau hyn bob amser yn 100% cywir.