MAIN PROBLEMS IN AMERICAN HISTROY VOLUME 2 1987 FIFTH EDITION
HOWARD H.QUINT MILTON CANTOR DEAN ALBERTSON1988 年出版498 页ISBN：0256060223
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DIFFERENTIAL EQUATIONS WITH BOUNDARY-VALUE PROBLEMS SEVENTH EDITION
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Analysis and Computation of Electric and Magnetic Field Problems SecondEdition K.J.Binns and P.J.Law
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