Elementary topology:
Viro, O. Ya.
Elementary topology: problem textbook O. Ya Viro and et al. - Rhode Island : American Mathematical Society, 2008. - xx, 400 p.
Including index:395-400p.
9780821845066 = Mathematics collection
General topology.
Mathematics.
Topological properties.
514 V81E
Elementary topology: problem textbook O. Ya Viro and et al. - Rhode Island : American Mathematical Society, 2008. - xx, 400 p.
Including index:395-400p.
9780821845066 = Mathematics collection
General topology.
Mathematics.
Topological properties.
514 V81E