Walker, R. H. (2011). The Differential Diagnosis of Chorea. Oxford University Press.
शिकागो स्टाइल उद्धरणWalker, Ruth H. The Differential Diagnosis of Chorea. Oxford: Oxford University Press, 2011.
एमएलए उद्धरणWalker, Ruth H. The Differential Diagnosis of Chorea. Oxford University Press, 2011.
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