Martin, R. H. (1976). Non-linear operators and differential equations in banach spaces. John wiley & sons.
शिकागो स्टाइल उद्धरणMartin, Robert H. Non-linear Operators and Differential Equations in Banach Spaces. John wiley & sons, 1976.
एमएलए उद्धरणMartin, Robert H. Non-linear Operators and Differential Equations in Banach Spaces. John wiley & sons, 1976.
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