Cita APA (7th ed.)
Zill, D. G. (2001). A first course in differential equations with modeling applications (7th ed.). Brooks/Cole/Thomson Learning.
Cita Chicago (17th ed.)
Zill, Dennis G. A First Course in Differential Equations with Modeling Applications. 7th ed. Pacific Grove, CA: Brooks/Cole/Thomson Learning, 2001.
Cita MLA (9th ed.)
Zill, Dennis G. A First Course in Differential Equations with Modeling Applications. 7th ed. Brooks/Cole/Thomson Learning, 2001.
Atenció: Aquestes cites poden no estar 100% correctes.