Williamson, R. E. (1996). Introduction to differential equations and dynamical systems. New York: McGraw-Hill.
Trích dẫn kiểu ChicagoWilliamson, Richard E. Introduction to Differential Equations and Dynamical Systems. New York: McGraw-Hill, 1996.
Deismireacht MLAWilliamson, Richard E. Introduction to Differential Equations and Dynamical Systems. New York: McGraw-Hill, 1996.
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