TY  - BOOK
AU  - Viro, O. Ya.
TI  - Elementary topology: : problem textbook 
SN  - 9780821845066
U1  - 514 
PY  - 2008///
CY  - Providence
PB  - American Mathematical Society
N1  - "Purchased under NBHM grant for the year 2009-2010"
ER  -