Hughes, G., & Bucknall, J. (2000). Poland: Complying with EU environmental legislation. World Bank.
Citace podle Chicago (17th ed.)Hughes, Gordon, a Julia Bucknall. Poland: Complying with EU Environmental Legislation. Washington, D.C.: World Bank, 2000.
Citace podle MLA (9th ed.)Hughes, Gordon, a Julia Bucknall. Poland: Complying with EU Environmental Legislation. World Bank, 2000.