I︠A︡gn, I. I. (1952). Izgibno-krutilʹnye deformat︠s︡ii tonkostennykh sterzhneĭ otkrytogo profili︠a︡: Teorii︠a︡ i zadachi. Gos. izd-vo tekhniko-teoret. lit-ry.
Chicago Style (17th ed.) CitationI︠A︡gn, IU. I. Izgibno-krutilʹnye Deformat︠s︡ii Tonkostennykh Sterzhneĭ Otkrytogo Profili︠a︡: Teorii︠a︡ I Zadachi. Moskva: Gos. izd-vo tekhniko-teoret. lit-ry, 1952.
MLA (9th ed.) CitationI︠A︡gn, IU. I. Izgibno-krutilʹnye Deformat︠s︡ii Tonkostennykh Sterzhneĭ Otkrytogo Profili︠a︡: Teorii︠a︡ I Zadachi. Gos. izd-vo tekhniko-teoret. lit-ry, 1952.
Warning: These citations may not always be 100% accurate.