Duff, G. F. D., & Naylor, D. (1966). Differential equations of applied mathematics. Wiley.
Dyfyniad Arddull ChicagoDuff, G. F. D., and Derek Naylor. Differential Equations of Applied Mathematics. New York: Wiley, 1966.
Dyfyniad MLADuff, G. F. D., and Derek Naylor. Differential Equations of Applied Mathematics. Wiley, 1966.
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