Cita APA (7th ed.)

(2000). Greener public purchasing: Issues and practical solutions. Organisation for Economic Co-operation and Development.

Cita Chicago (17th ed.)

Greener Public Purchasing: Issues and Practical Solutions. Paris: Organisation for Economic Co-operation and Development, 2000.

Cita MLA (9th ed.)

Greener Public Purchasing: Issues and Practical Solutions. Organisation for Economic Co-operation and Development, 2000.