Simmons, G. F. (1972). Differential Equations: With applications and historical notes. McGraw-Hill.
Citace podle Chicago (17th ed.)Simmons, George F. Differential Equations: With Applications and Historical Notes. New York: McGraw-Hill, 1972.
Citace podle MLA (9th ed.)Simmons, George F. Differential Equations: With Applications and Historical Notes. McGraw-Hill, 1972.
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