FAO. (2004). Photo library on soil erosion processes =: Photothèque des processus d'erosion do sol. Rome: Food and Agriculture Organization of the United Nations.
Παραπομπή Chicago StyleFAO. Photo Library On Soil Erosion Processes =: Photothèque Des Processus D'erosion Do Sol. Rome: Food and Agriculture Organization of the United Nations, 2004.
Παραπομπή MLAFAO. Photo Library On Soil Erosion Processes =: Photothèque Des Processus D'erosion Do Sol. Rome: Food and Agriculture Organization of the United Nations, 2004.
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