APA (7th ed.) Citation

(1989). The extent of soil erosion - regional comparisons. DITSL.

Chicago Style (17th ed.) Citation

The Extent of Soil Erosion - Regional Comparisons. Witzenhausen: DITSL, 1989.

MLA (9th ed.) Citation

The Extent of Soil Erosion - Regional Comparisons. DITSL, 1989.

Warning: These citations may not always be 100% accurate.