Citazione APA

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

Stile di citazione Chicago

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

Citazione MLA

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