APA引文

ProQuest (Firm). (2009). OECD economic surveys: European Union 2009. OECD.

芝加哥风格引文

ProQuest (Firm). OECD Economic Surveys: European Union 2009. Paris: OECD, 2009.

MLA引文

ProQuest (Firm). OECD Economic Surveys: European Union 2009. OECD, 2009.

警告：这些引文格式不一定是100％准确.