Williams, R. E. (2001). Introduction to differential equations and dynamical systems (2nd ed.). McGraw Hill.
Citazione stile Chigago Style (17a edizione)Williams, Richard E. Introduction to Differential Equations and Dynamical Systems. 2nd ed. Boston: McGraw Hill, 2001.
Citatione MLA (9a ed.)Williams, Richard E. Introduction to Differential Equations and Dynamical Systems. 2nd ed. McGraw Hill, 2001.
Attenzione: Queste citazioni potrebbero non essere precise al 100%.