(2001). Extended producer responsibility: A guidance manual for governments. OECD Publications Services.
Chicago-referens (17:e uppl.)Extended Producer Responsibility: A Guidance Manual for Governments. Paris, France: OECD Publications Services, 2001.
MLA-referens (9:e uppl.)Extended Producer Responsibility: A Guidance Manual for Governments. OECD Publications Services, 2001.
Varning: dessa hänvisningar är inte alltid fullständigt riktiga.