Ostrovsky, N. How the steel was tempered. Progress Publishers.
Chicagoスタイル(17版)引用形式Ostrovsky, Nikolai. How the Steel Was Tempered. Progress Publishers.
MLA(8版)引用形式Ostrovsky, Nikolai. How the Steel Was Tempered. Progress Publishers.
警告: この引用は必ずしも正確ではありません.