APA-referens

Powers, D. L. (2010). Boundary value problems: And partial differential equations.-6th ed. (6th ed.). Elsevier/Academic Press.

Chicago-stil citat

Powers, David L. Boundary Value Problems: And Partial Differential Equations.-6th Ed. 6th ed. Amsterdam ; Boston: Elsevier/Academic Press, 2010.

MLA-referens

Powers, David L. Boundary Value Problems: And Partial Differential Equations.-6th Ed. 6th ed. Elsevier/Academic Press, 2010.