Lipschutz, S. (1974). Theory and problems of complex variables: : with an introduction to conformal mapping and its application (SI metric edition.). McGraw-hill.

Lipschutz, Seymour. Theory and Problems of Complex Variables: : with an Introduction to Conformal Mapping and Its Application. SI metric edition. New York: McGraw-hill, 1974.

Lipschutz, Seymour. Theory and Problems of Complex Variables: : with an Introduction to Conformal Mapping and Its Application. SI metric edition. McGraw-hill, 1974.