Hughes , E. . .. (1969). Electrical technology (4th ed.). Longmans green.
Chicago Style (17th ed.) ZitazioaHughes , Edward. Electrical Technology. 4th ed. London: Longmans green, 1969.
MLA (9th ed.) ZitazioaHughes , Edward. Electrical Technology. 4th ed. Longmans green, 1969.
Kontuz: berrikusi erreferentzia hauek erabili aurretik.