APA (7th ed.) Zitazioa

Hughes, G., & Bucknall, J. (2000). Poland: Complying with EU environmental legislation. World Bank.

Chicago Style (17th ed.) Zitazioa

Hughes, Gordon, eta Julia Bucknall. Poland: Complying with EU Environmental Legislation. Washington, D.C.: World Bank, 2000.

MLA (9th ed.) Zitazioa

Hughes, Gordon, eta Julia Bucknall. Poland: Complying with EU Environmental Legislation. World Bank, 2000.

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