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Dyfyniad Arddull ChicagoStratigraphic Boundary Problem in India: :Memoir 16. Bangalore: Geological society of india, 1990.
Dyfyniad MLAStratigraphic Boundary Problem in India: :Memoir 16. Geological society of india, 1990.
Rhybudd: Mae'n bosib nad yw'r dyfyniadau hyn bob amser yn 100% cywir.