TY  - BOOK
AU  - Viro,Ya O...[et al.]
TI  - Elementary topology: problem textbook
SN  - 9780821887264
U1  - 514 
PY  - 2012///
CY  - Rhode Island
PB  - American Mathematical Society, distributed by Hyderabad: Universities Press
KW  - 
KW  - Topology
N1  - includes index
ER  -