WRIGHT, W. S. (2001). A first course in differential equations: The classic fifth edition. Brooks Cole.
Cita Chicago (17th ed.)WRIGHT, Warren S. A First Course in Differential Equations: The Classic Fifth Edition. Brooks Cole, 2001.
Cita MLA (9th ed.)WRIGHT, Warren S. A First Course in Differential Equations: The Classic Fifth Edition. Brooks Cole, 2001.
Atenció: Aquestes cites poden no estar 100% correctes.