Aerial photo-interpretation for soil erosion and conservation survey part I: soil erosion features
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Váldodahkki: | BERGSMA, E. |
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Materiálatiipa: | Girji |
Giella: | English |
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Aerial photo-interpretation for soil erosion and conservation survey part II: erosion factors
Dahkki: BERGSMA, E. -
Aerial photo interpretation in soil survey
Dahkki: GOOSEN, Doeko
Almmustuhtton: (1967) -
Soil erosion and conservation.-- Ed.2
Dahkki: MORGAN, R.P.C
Almmustuhtton: (1995) -
Photo-hydrological reconnaissance surveys: a study of the contribusion of serial photo-interpretation to ...
Dahkki: MEIJERINK, A.M.J
Almmustuhtton: (1974) -
Soil erosion
Almmustuhtton: (1980)