Partial Differential Equations An Introduction 2nd Edition
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JUDY C.PEARSON AND PAUL E.NELSON2000 年出版504 页ISBN：
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ROGER D.WIMMER AND JOSEPH R.DOMINICK2003 年出版488 页ISBN：
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KENNETH PREWITT SIDNEY VERBA ROBERT H.SALISBURY1987 年出版604 页ISBN：
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DEREK HULL2222 年出版271 页ISBN：0080181295
