APA-ийн эшлэл(7 дахь хэвлэлт)

Organisation for Economic Co-operation and Development. Working Party on Environmental Performance, ProQuest (Firm), & Omersu, G. (2012). Germany 2012. OECD.

Чикаго-гийн эшлэл (17 дахь хэвлэлт)

Organisation for Economic Co-operation and Development. Working Party on Environmental Performance, ProQuest (Firm), ба Gerhard Omersu. Germany 2012. [Paris]: OECD, 2012.

MLA -ийн эшлэл (9 дэх хэвлэлт)

Organisation for Economic Co-operation and Development. Working Party on Environmental Performance, et al. Germany 2012. OECD, 2012.