Dyfyniad APA

Geological Survey of India. (1994). General information on copper-lead-zinc ores in India. Geological Survey of India.

Dyfyniad Arddull Chicago

Geological Survey of India. General Information on Copper-lead-zinc Ores in India. [Calcutta]: Geological Survey of India, 1994.

Dyfyniad MLA

Geological Survey of India. General Information on Copper-lead-zinc Ores in India. Geological Survey of India, 1994.

Rhybudd: Mae'n bosib nad yw'r dyfyniadau hyn bob amser yn 100% cywir.