Zill D.G. A First Course in Differential Equations with Modeling Applications

10 edition. — Brooks/Cole, Cengage Learning, 2012. — 480 p. — ISBN10 1111827052.A First Course in Differential Equations with Modeling Applications, 10th Edition strikes a balance between the analytical, qualitative, and quantitative approaches to the study of differential equations. This proven and accessible book speaks to beginning engineering and math students through a wealth of pedagogical aids, including an abundance of examples, explanations, "Remarks" boxes, definitions, and group projects. Written in a straightforward, readable, and helpful style, the book provides a thorough treatment of boundary-value problems and partial differential equations.