TY  - BOOK
AU  - Spiegel, Murray R.
TI  - Schaum`s outline of theory and problems of complex variables : with an introduction to conformal mapping and its application 
SN  - 0070990107
U1  - 515.9 SPI/S 
PY  - 1988///
CY  - Singapore
PB  - Mcgraw Hill Book Company
ER  -