TY  - BOOK
AU  - Viro O. Ya.
AU  -  Ivanov O. A.
AU  -  Kharlamov V. M.
AU  -  Netsvetaev N.Yu.
TI  - Elementary topology:  Problem textbook
U1  - B316, P8 
PY  - 2013///
CY  - Hyderabad
PB  - American Mathematical Society        
KW  - Gift
ER  -