Powers, D. L. (2006). Boundary value problems: And partial differential equations (5th ed.). Elsevier Academic Press.
芝加哥风格引文Powers, David L. Boundary Value Problems: And Partial Differential Equations. 5th ed. Amsterdam ; Boston: Elsevier Academic Press, 2006.
MLA引文Powers, David L. Boundary Value Problems: And Partial Differential Equations. 5th ed. Elsevier Academic Press, 2006.
警告：这些引文格式不一定是100％准确.