Resources Flow and Nutrients Balance Analysis Autor Gebremedhin Kiros et al. 11 apr 2012 Paperback Preț: 311.22 lei 6-8 săpt.
Role of Soil Conservation Measures on Soil and Crop Productivity Autor Tadele Amdemariam et al. 28 aug 2012 Paperback Preț: 375.44 lei 6-8 săpt.