Organisation for Economic Co-operation and Development. (2020). How's life? 2020: Measuring well-being. OECD.
Чикаго-гийн эшлэл (17 дахь хэвлэлт)Organisation for Economic Co-operation and Development. How's Life? 2020: Measuring Well-being. Paris: OECD, 2020.
MLA -ийн эшлэл (9 дэх хэвлэлт)Organisation for Economic Co-operation and Development. How's Life? 2020: Measuring Well-being. OECD, 2020.
Анхааруулга: Эдгээр ишлэлүүд үргэлж 100% үнэн зөв биш байж магадгүй.