Organisation for Economic Co-operation and Development & ProQuest (Firm). (2011). Development co-operation report 2011 (50th Anniversary ed.). OECD Pub..
Чикаго-гийн эшлэл (17 дахь хэвлэлт)Organisation for Economic Co-operation and Development ба ProQuest (Firm). Development Co-operation Report 2011. 50th Anniversary ed. Paris: OECD Pub., 2011.
MLA -ийн эшлэл (9 дэх хэвлэлт)Organisation for Economic Co-operation and Development ба ProQuest (Firm). Development Co-operation Report 2011. 50th Anniversary ed. OECD Pub., 2011.
Анхааруулга: Эдгээр ишлэлүүд үргэлж 100% үнэн зөв биш байж магадгүй.