TY  - BOOK
AU  - Spiegel, Murray R. 
TI  - Theory and problems of complex variables: with an introduction to conformal mapping and its applications 
SN  - 0070990107
AV  - 3629 
U1  - 515.9076 22
PY  - 1964///
CY  - Singapore
PB  - McGraw HIill
ER  -