APA (7th ed.) Zitazioa

Parnov, E. (1971). At the crossroads of infinities. Mir.

Chicago Style (17th ed.) Zitazioa

Parnov, E.I. At the Crossroads of Infinities. Moscow: Mir, 1971.

MLA (9th ed.) Zitazioa

Parnov, E.I. At the Crossroads of Infinities. Mir, 1971.