TY  - BOOK
AU  - Pontriagin,L.S.
AU  - Lehmer,Emma (Trotskaia)
TI  - Topological groups
U1  - 512.2 23
PY  - 1939/// [ Fourth printing 1952 ]
CY  - Princeton
PB  - Princeton University Press
KW  - Continuous groups
KW  - Topology
N1  - Includes index and bibliography
ER  -