Differential equations /
Wylie, Clarence Raymond, 1911-
Differential equations / C. Ray Wylie. - New York : McGraw-Hill, c1979. - xiii, 593 p.
0070721971
Boundary value problems.
Differential equations.
Differential equations / C. Ray Wylie. - New York : McGraw-Hill, c1979. - xiii, 593 p.
0070721971
Boundary value problems.
Differential equations.