APA (7th ed.) Zitazioa

Alexandroff, P. S. (1961). Elementary concepts of topology (1a. ed.). Dover.

Chicago Style (17th ed.) Zitazioa

Alexandroff, Pavel Sergeevich. Elementary Concepts of Topology. 1a. ed. Nueva York: Dover, 1961.

MLA (9th ed.) Zitazioa

Alexandroff, Pavel Sergeevich. Elementary Concepts of Topology. 1a. ed. Dover, 1961.