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Dyfyniad Arddull ChicagoRam Parkash. The Glass Bangle Industry of Firozabad: A Report on Child Labour. [New Delhi]: National Labour Institute, 1989.
Dyfyniad MLARam Parkash. The Glass Bangle Industry of Firozabad: A Report on Child Labour. National Labour Institute, 1989.
Rhybudd: Mae'n bosib nad yw'r dyfyniadau hyn bob amser yn 100% cywir.