Tripathi, R. P., & Singh, H. (1993). Soil erosion and conservation. New Age International.
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Dyfyniad Arddull Chicago
Tripathi, R. P., and H.P Singh. Soil Erosion and Conservation. Kolkata: New Age International, 1993.
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Dyfyniad MLA
Tripathi, R. P., and H.P Singh. Soil Erosion and Conservation. New Age International, 1993.
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Rhybudd: Mae'n bosib nad yw'r dyfyniadau hyn bob amser yn 100% cywir.