Cita APA (7th ed.)

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

Cita Chicago (17th ed.)

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

Cita MLA (9th ed.)

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