Lua APA (7ú heag.)
Khanna, O. (2014). A text book of welding technology. Dhanpat Rai Pub.
Lua i Stíl Chicago (17ú heag.)
Khanna, O.P. A Text Book of Welding Technology. New Delhi: Dhanpat Rai Pub, 2014.
Lua MLA (9ú heag.)
Khanna, O.P. A Text Book of Welding Technology. Dhanpat Rai Pub, 2014.
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