(1980). Introduction to topology. Moscow: Mir.
Dyfyniad Arddull ChicagoIntroduction to Topology. Moscow: Mir, 1980.
Dyfyniad MLAIntroduction to Topology. Moscow: Mir, 1980.
Rhybudd: Mae'n bosib nad yw'r dyfyniadau hyn bob amser yn 100% cywir.
(1980). Introduction to topology. Moscow: Mir.
Dyfyniad Arddull ChicagoIntroduction to Topology. Moscow: Mir, 1980.
Dyfyniad MLAIntroduction to Topology. Moscow: Mir, 1980.