APA-referens

Edwards, C., & Penney, D. E. (1996). Differential equations and boundary value problems: Computing and modeling. PHI.

Chicago-stil citat

Edwards, C.H, och David E. Penney. Differential Equations and Boundary Value Problems: Computing and Modeling. New Jersey: PHI, 1996.

MLA-referens

Edwards, C.H, och David E. Penney. Differential Equations and Boundary Value Problems: Computing and Modeling. PHI, 1996.