Dyfyniad APA
Organisation for Economic Co-operation and Development. (2015). How's life? 2015: Measuring well-being. OECD.
Dyfyniad Arddull Chicago
Organisation for Economic Co-operation and Development. How's Life? 2015: Measuring Well-being. Paris: OECD, 2015.
Dyfyniad MLA
Organisation for Economic Co-operation and Development. How's Life? 2015: Measuring Well-being. OECD, 2015.
Rhybudd: Mae'n bosib nad yw'r dyfyniadau hyn bob amser yn 100% cywir.