Cita APA (7a ed.)

Benito, J. M. d., & Pinborg, U. (2000). Nature conservation: Annual topic update 1999. Office for Official Publications of the European Communities.

Cita Chicago Style (17a ed.)

Benito, Juan Manuel de, y Ulla Pinborg. Nature Conservation: Annual Topic Update 1999. Luxembourg: Office for Official Publications of the European Communities, 2000.

Cita MLA (9a ed.)

Benito, Juan Manuel de, y Ulla Pinborg. Nature Conservation: Annual Topic Update 1999. Office for Official Publications of the European Communities, 2000.