Organisation for Economic Co-operation and Development & ProQuest (Firm). (2009). Tax co-operation 2009: Towards a level playing field : 2009 assessment by the Global Forum on transparency and exchange of information. OECD.
Trích dẫn kiểu Chicago (xuất bản lần thứ 7)Organisation for Economic Co-operation and Development và ProQuest (Firm). Tax Co-operation 2009: Towards a Level Playing Field : 2009 Assessment by the Global Forum on Transparency and Exchange of Information. Paris: OECD, 2009.
Trích dẫn kiểu MLA (xuất bản lần thứ 9)Organisation for Economic Co-operation and Development và ProQuest (Firm). Tax Co-operation 2009: Towards a Level Playing Field : 2009 Assessment by the Global Forum on Transparency and Exchange of Information. OECD, 2009.
Cảnh báo: Các trích dẫn này có thể không phải lúc nào cũng chính xác 100%.