APA-ийн эшлэл(7 дахь хэвлэлт)

Organisation for Economic Co-operation and Development. (2019). Public procurement in Germany: Strategic dimensions for well-being and growth. OECD.

Чикаго-гийн эшлэл (17 дахь хэвлэлт)

Organisation for Economic Co-operation and Development. Public Procurement in Germany: Strategic Dimensions for Well-being and Growth. Paris: OECD, 2019.

MLA -ийн эшлэл (9 дэх хэвлэлт)

Organisation for Economic Co-operation and Development. Public Procurement in Germany: Strategic Dimensions for Well-being and Growth. OECD, 2019.