FAO. (1989). FAO conservation guide N.13.5: Watershed management field manual: Road design and construction in sensitives water-sheds. Rome: FAO.
Styl cytowania ChicagoFAO. FAO Conservation Guide N.13.5: Watershed Management Field Manual: Road Design and Construction in Sensitives Water-sheds. Rome: FAO, 1989.
Styl cytowania MLAFAO. FAO Conservation Guide N.13.5: Watershed Management Field Manual: Road Design and Construction in Sensitives Water-sheds. Rome: FAO, 1989.
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