Padiyar K.R. (2013). HVDC power transmission systems (2nd.). New Age.
Chicago Style aipamenaPadiyar K.R. HVDC Power Transmission Systems. 2nd. New Delhi: New Age, 2013.
MLA aipamenaPadiyar K.R. HVDC Power Transmission Systems. 2nd. New Age, 2013.
Kontuz: berrikusi erreferentzia hauek erabili aurretik.