OSTROVSKY, N. A. (2010). How the steel was tempered = gang tie shi zen yang lian cheng de. Yilin press.
Dyfyniad Arddull ChicagoOSTROVSKY, Nikolai Alexeevich. How the Steel Was Tempered = Gang Tie Shi Zen Yang Lian Cheng De. Yilin press, 2010.
Dyfyniad MLAOSTROVSKY, Nikolai Alexeevich. How the Steel Was Tempered = Gang Tie Shi Zen Yang Lian Cheng De. Yilin press, 2010.
Rhybudd: Mae'n bosib nad yw'r dyfyniadau hyn bob amser yn 100% cywir.