Berge Claude & Patterson E. M. (1997). Topological spaces: Including a treatment of multi-valued functions, vector spaces, and convexity. Dover.
Παραπομπή σε μορφή Chicago (17η εκδ.)Berge Claude και Patterson E. M. Topological Spaces: Including a Treatment of Multi-valued Functions, Vector Spaces, and Convexity. Dover, 1997.
Παραπομπή σε μορφή MLA (8th εκδ.)Berge Claude και Patterson E. M. Topological Spaces: Including a Treatment of Multi-valued Functions, Vector Spaces, and Convexity. Dover, 1997.
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