Powers, D. L. (2010). Boundary value problems: And partial differential equations.-6th ed. (6th ed.). Elsevier/Academic Press.
استشهاد بنمط شيكاغوPowers, David L. Boundary Value Problems: And Partial Differential Equations.-6th Ed. 6th ed. Amsterdam ; Boston: Elsevier/Academic Press, 2010.
MLA استشهادPowers, David L. Boundary Value Problems: And Partial Differential Equations.-6th Ed. 6th ed. Elsevier/Academic Press, 2010.
تحذير: قد لا تكون هذه الاستشهادات دائما دقيقة بنسبة 100%.