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Dyfyniad Arddull ChicagoTiwari,K M. Social Forestry for Rural Development. Dehradun: International Book, 1983.
Dyfyniad MLATiwari,K M. Social Forestry for Rural Development. International Book, 1983.
Rhybudd: Mae'n bosib nad yw'r dyfyniadau hyn bob amser yn 100% cywir.