KHANNA O P, . (2006). A TEXT BOOK OF MATERIAL SCIENCE & METALLURGY. DELHI: DHANPAT RAI.
KHANNA O P, . 2006. A TEXT BOOK OF MATERIAL SCIENCE & METALLURGY. DELHI: DHANPAT RAI.
KHANNA O P, . A TEXT BOOK OF MATERIAL SCIENCE & METALLURGY. DELHI: DHANPAT RAI. 2006.