Cita APA (7th ed.)

Edwards, C. H., Penney, D. E., & Calvis, D. (2008). Elementary differential equations with boundary value problems (6a. ed.). Pearson Prentice Hall.

Cita Chicago (17th ed.)

Edwards, C. Henry, David E. Penney, i David Calvis. Elementary Differential Equations with Boundary Value Problems. 6a. ed. Upper Saddle River: Pearson Prentice Hall, 2008.

Cita MLA (9th ed.)

Edwards, C. Henry, et al. Elementary Differential Equations with Boundary Value Problems. 6a. ed. Pearson Prentice Hall, 2008.