Aerial photo-interpretation for soil erosion and conservation survey part I: soil erosion features
Wedi'i Gadw mewn:
Prif Awdur: | BERGSMA, E. |
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Fformat: | Llyfr |
Iaith: | English |
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Eitemau Tebyg
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gan: MEIJERINK, A.M.J
Cyhoeddwyd: (1974) -
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