Churchil,Ruel V. Compex Variable and Application / by Ruel V.Churchil and James Ward Brown - 5th ed. - New york: Mc Grawhill, 1990. - xvi, 361p. - International Series in pure and applied mathematics . ISBN: 0070109052 Subjects--Topical Terms: Complex VariablesElementary FunctionMathSeries Dewey Class. No.: 515.9 / CHU/C