Cita APA (7a ed.)

Organisation for Economic Co-operation and Development. (2011). E-Procurement. OECD Publishing.

Cita Chicago Style (17a ed.)

Organisation for Economic Co-operation and Development. E-Procurement. Paris: OECD Publishing, 2011.

Cita MLA (9a ed.)

Organisation for Economic Co-operation and Development. E-Procurement. OECD Publishing, 2011.