Citação norma APA

Wirkus, S. A., Swift, R. J., & Szypowski, R. course in differential equations with boundary-value problems (Second edition.).

Citação norma Chicago

Wirkus, Stephen Allen, Randall J. Swift, and Ryan Szypowski. Course in Differential Equations with Boundary-value Problems. Second edition.

Citação norma MLA

Wirkus, Stephen Allen, et al. Course in Differential Equations with Boundary-value Problems. Second edition.

Nota: a formatação da citação pode não corresponder 100% ao definido pela respectiva norma.