Dyfyniad APA

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

Dyfyniad Arddull Chicago

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

Dyfyniad MLA

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

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