COTTON H. (2005). ELECTRICAL TECHNOLOGY (7 ed.). CBS PUBLISHERS & DISTRIBUTORS.
Chicago Style aipamenaCOTTON H. ELECTRICAL TECHNOLOGY. 7 ed. NEW DELHI: CBS PUBLISHERS & DISTRIBUTORS, 2005.
MLA aipamenaCOTTON H. ELECTRICAL TECHNOLOGY. 7 ed. CBS PUBLISHERS & DISTRIBUTORS, 2005.
Kontuz: berrikusi erreferentzia hauek erabili aurretik.