Narayanasamy, R. (1997). Metal forming technology. Ahuja.
Chicago Style aipamenaNarayanasamy, R. Metal Forming Technology. New Delhi: Ahuja, 1997.
MLA aipamenaNarayanasamy, R. Metal Forming Technology. Ahuja, 1997.
Kontuz: berrikusi erreferentzia hauek erabili aurretik.