RITGER, P. D. a. R. (1968). Differential equations with applications. McGraw-Hill.
Cita Chicago Style (17a ed.)RITGER, Paul D. and ROSE. Differential Equations with Applications. New York: McGraw-Hill, 1968.
Cita MLA (9a ed.)RITGER, Paul D. and ROSE. Differential Equations with Applications. McGraw-Hill, 1968.
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