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Dyfyniad Arddull ChicagoElman,Richard, Karpenko,Nikita, and Merkurjev,Alexander. Algebraic and Geometric Theory of Quadratic Forms. Hyderabad: Universities Press, 2011.
Dyfyniad MLAElman,Richard, et al. Algebraic and Geometric Theory of Quadratic Forms. Universities Press, 2011.
Rhybudd: Mae'n bosib nad yw'r dyfyniadau hyn bob amser yn 100% cywir.