Lua APA (7ú heag.)

Lefschetz, S. (1942). Topics in topology. Princeton University Press.

Lua i Stíl Chicago (17ú heag.)

Lefschetz, Solomon. Topics in Topology. Princeton: Princeton University Press, 1942.

Lua MLA (9ú heag.)

Lefschetz, Solomon. Topics in Topology. Princeton University Press, 1942.

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