Cita APA (7th ed.)

Powers, D. L. (2006). Boundary value problems: And partial differential equations (5th ed.). Elsevier Academic Press.

Cita Chicago (17th ed.)

Powers, David L. Boundary Value Problems: And Partial Differential Equations. 5th ed. Amsterdam ; Boston: Elsevier Academic Press, 2006.

Cita MLA (9th ed.)

Powers, David L. Boundary Value Problems: And Partial Differential Equations. 5th ed. Elsevier Academic Press, 2006.