TY  - BOOK
AU  - Beardon, A. F.
TI  - Complex analysis: the argument principle in analysis and topology
SN  - 0 471 99671 8
U1  - 515.9 
PY  - 1979///
CY  - New York
PB  - John Wiley
N1  - Includes bibliographical references and index
ER  -