Citazione Stile APA (7a Edizione)

(2003). The environmental performance of public procurement: Issues of policy coherence. OECD.

Citazione stile Chigago Style (17a edizione)

The Environmental Performance of Public Procurement: Issues of Policy Coherence. Paris, France: OECD, 2003.

Citatione MLA (9a ed.)

The Environmental Performance of Public Procurement: Issues of Policy Coherence. OECD, 2003.