Cita APA (7a ed.)

Organisation for Economic Co-operation and Development & ProQuest (Firm). (2009). Piedmont, Italy. OECD.

Cita Chicago Style (17a ed.)

Organisation for Economic Co-operation and Development y ProQuest (Firm). Piedmont, Italy. Paris: OECD, 2009.

Cita MLA (9a ed.)

Organisation for Economic Co-operation and Development y ProQuest (Firm). Piedmont, Italy. OECD, 2009.