Παραπομπή APA

European Environment Agency. (2000). Down to earth: Soil degradation and sustainable development in Europe : a challenge for the 21st century. Copenhagen: European Environment Agency.

Παραπομπή Chicago Style

European Environment Agency. Down to Earth: Soil Degradation and Sustainable Development in Europe : A Challenge for the 21st Century. Copenhagen: European Environment Agency, 2000.

Παραπομπή MLA

European Environment Agency. Down to Earth: Soil Degradation and Sustainable Development in Europe : A Challenge for the 21st Century. Copenhagen: European Environment Agency, 2000.

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