TY  - BOOK
AU  - Churchill, Ruel V.
AU  - Verhey, Roger F.
AU  - Brown, James Ward
TI  - Complex variables and applications
U1  - 517.8 
PY  - 1960///
CY  - New York
PB  - McGraw Hill 
N1  - Bibliography : p. 281 - 283
ER  -