Dyfyniad APA

Geological Survey of India. News. Geological Survey of India.

Dyfyniad Arddull Chicago

Geological Survey of India. News. Calcutta: Geological Survey of India.

Dyfyniad MLA

Geological Survey of India. News. Geological Survey of India.

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