Trim, Donald W.
Applied partial differential equations / Donald W. Trim
PWS, 1990
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Berg, Paul W.
Elementary partial differential equations / Paul W. Berg, James L. McGregor
Holden-Day, 1966
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Ames, William F.
Numerical methods for partial differential equations
Academic Press, 1977
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Ames, William F.
Nonlinear partial differential equations in engineering, vol. 18-II
Academic Press, 1972
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Ames, William F.
Nonlinear partial differential equations in engineering, vol. 18
Academic Press, 1969
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