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Dyfyniad Arddull ChicagoGhosh, G.K. Environment: A Spiritual Dimension. New Delhi: Ashish Pub, 1991.
Dyfyniad MLAGhosh, G.K. Environment: A Spiritual Dimension. Ashish Pub, 1991.
Rhybudd: Mae'n bosib nad yw'r dyfyniadau hyn bob amser yn 100% cywir.