Khanna O P, . (2012). A text book of material science and metallurgy. New Delhi: Dhanpat Rai.
Khanna O P, . 2012. A text book of material science and metallurgy. New Delhi: Dhanpat Rai.
Khanna O P, . A text book of material science and metallurgy. New Delhi: Dhanpat Rai. 2012.