TY  - BOOK
AU  - Lefschetz, Solomon
AU  - Tucker, A W  [series editor]
TI  - Introduction to topology
U1  - 517.83 
PY  - 1949///
CY  - New Jersey
PB  - Princeton University Press
KW  - Duality theorems
KW  - Theory of complexes
KW  - Topology
ER  -