Ershov, ︠. L. (1989). Matematicheska︠i︡a logika i algoritmicheskie problemy. "Nauka," Sibirskoe otd-nie.
Chicago Style (17th ed.) CitationErshov, ︠I︡Uriĭ Leonidovich. Matematicheska︠i︡a Logika I Algoritmicheskie Problemy. Novosibirsk: "Nauka," Sibirskoe otd-nie, 1989.
MLA (8th ed.) CitationErshov, ︠I︡Uriĭ Leonidovich. Matematicheska︠i︡a Logika I Algoritmicheskie Problemy. "Nauka," Sibirskoe otd-nie, 1989.
Warning: These citations may not always be 100% accurate.