Simmons, G. F. (1974). Differential equations (1st.). Tata Mac Graw Hill.
Chicago Edition CitationSimmons, George F. Differential Equations. 1st. New Delhi: Tata Mac Graw Hill, 1974.
MLA Edition CitationSimmons, George F. Differential Equations. 1st. Tata Mac Graw Hill, 1974.
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