Cita APA (7th ed.)

Cech, E. (1966). Topological spaces (2a. ed.). Academia.

Cita Chicago (17th ed.)

Cech, Eduard. Topological Spaces. 2a. ed. Praga: Academia, 1966.

Cita MLA (9th ed.)

Cech, Eduard. Topological Spaces. 2a. ed. Academia, 1966.