Williamson, R. E. (1996). Introduction to differential equations and dynamical systems. New York: McGraw-Hill.
Dyfyniad Arddull ChicagoWilliamson, Richard E. Introduction to Differential Equations and Dynamical Systems. New York: McGraw-Hill, 1996.
Dyfyniad MLAWilliamson, Richard E. Introduction to Differential Equations and Dynamical Systems. New York: McGraw-Hill, 1996.
Rhybudd: Mae'n bosib nad yw'r dyfyniadau hyn bob amser yn 100% cywir.