Sanchez, D. (1968). Ordinary differential equations and stability theory. W.H. Freeman and company.
शिकागो स्टाइल उद्धरणSanchez, D.A. Ordinary Differential Equations and Stability Theory. London: W.H. Freeman and company, 1968.
एमएलए उद्धरणSanchez, D.A. Ordinary Differential Equations and Stability Theory. W.H. Freeman and company, 1968.
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