Evans, L. C. (1998). Partial differential equations. American Mathematical Society.
शिकागो स्टाइल उद्धरणEvans, Lawrence C. Partial Differential Equations. Providence, R.I.: American Mathematical Society, 1998.
एमएलए उद्धरणEvans, Lawrence C. Partial Differential Equations. American Mathematical Society, 1998.
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