OECD. (2015). Eurostat-OECD Compilation guide on land estimations. OECD.
Trích dẫn kiểu ChicagoOECD. Eurostat-OECD Compilation Guide On Land Estimations. OECD, 2015.
MLA引文OECD. Eurostat-OECD Compilation Guide On Land Estimations. OECD, 2015.
警告：这些引文格式不一定是100％准确.