Cita APA (7a ed.)

Agència Europea del Medi Ambient. (2012). Protected areas in Europe: An overview. Publications Office of the European Union.

Cita Chicago Style (17a ed.)

Agència Europea del Medi Ambient. Protected Areas in Europe: An Overview. Luxembourg: Publications Office of the European Union, 2012.

Cita MLA (9a ed.)

Agència Europea del Medi Ambient. Protected Areas in Europe: An Overview. Publications Office of the European Union, 2012.