Dyfyniad APA

Geological Survey of India. (1994). General information on manganese ores in India. Geological Survey of India.

Dyfyniad Arddull Chicago

Geological Survey of India. General Information on Manganese Ores in India. [Calcutta]: Geological Survey of India, 1994.

Dyfyniad MLA

Geological Survey of India. General Information on Manganese Ores in India. Geological Survey of India, 1994.

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