OSTROVSKY, N. A. (2010). How the steel was tempered = gang tie shi zen yang lian cheng de. Yilin press.
शिकागो शैली (17वां संस्करण) प्रशस्ति पत्रOSTROVSKY, Nikolai Alexeevich. How the Steel Was Tempered = Gang Tie Shi Zen Yang Lian Cheng De. Yilin press, 2010.
एमएलए (8वां संस्करण) प्रशस्ति पत्रOSTROVSKY, Nikolai Alexeevich. How the Steel Was Tempered = Gang Tie Shi Zen Yang Lian Cheng De. Yilin press, 2010.
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