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Dyfyniad Arddull ChicagoChavel, Isaac. Riemannian Geometry: A Modern Introduction. 2nd ed. New York: Cambridge University Press, 2006.
Dyfyniad MLAChavel, Isaac. Riemannian Geometry: A Modern Introduction. 2nd ed. Cambridge University Press, 2006.
Rhybudd: Mae'n bosib nad yw'r dyfyniadau hyn bob amser yn 100% cywir.