(2001). Extended producer responsibility: A guidance manual for governments. OECD Publications Services.
Lua i Stíl Chicago (17ú heag.)Extended Producer Responsibility: A Guidance Manual for Governments. Paris, France: OECD Publications Services, 2001.
Lua MLA (9ú heag.)Extended Producer Responsibility: A Guidance Manual for Governments. OECD Publications Services, 2001.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.