KHANNA O.P. (1995). A TEXTBOOK OF MATERIAL SCIENCE & METALLURGY. DHANPAT RAI.
Lua i Stíl Chicago (17ú heag.)KHANNA O.P. A TEXTBOOK OF MATERIAL SCIENCE & METALLURGY. DELHI: DHANPAT RAI, 1995.
Lua MLA (9ú heag.)KHANNA O.P. A TEXTBOOK OF MATERIAL SCIENCE & METALLURGY. DHANPAT RAI, 1995.
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