Cita APA (7a ed.)

Agencia Europea de Medio Ambiente. (2000). Down to earth: Soil degradation and sustainable development in Europe : a challenge for the 21st century. Office for Official Publications of the European Communities.

Cita Chicago Style (17a ed.)

Agencia Europea de Medio Ambiente. Down to Earth: Soil Degradation and Sustainable Development in Europe : A Challenge for the 21st Century. Luxembourg: Office for Official Publications of the European Communities, 2000.

Cita MLA (9a ed.)

Agencia Europea de Medio Ambiente. Down to Earth: Soil Degradation and Sustainable Development in Europe : A Challenge for the 21st Century. Office for Official Publications of the European Communities, 2000.