APA-ийн эшлэл(7 дахь хэвлэлт)

Organisation for Economic Co-operation and Development. (2019). Reforming isssteson's public procurement for sustainability. OECD.

Чикаго-гийн эшлэл (17 дахь хэвлэлт)

Organisation for Economic Co-operation and Development. Reforming Isssteson's Public Procurement for Sustainability. Paris, France: OECD, 2019.

MLA -ийн эшлэл (9 дэх хэвлэлт)

Organisation for Economic Co-operation and Development. Reforming Isssteson's Public Procurement for Sustainability. OECD, 2019.