Fitzgerald, A., Kingsley, C. J., & Umans, S. D. (1992). ELECTRIC MACHINERY. McGraw-Hill.
Chicago Style (17th ed.) ZitazioaFitzgerald, A.E, Charles Jr Kingsley, eta Stephen D. Umans. ELECTRIC MACHINERY. New Delhi: McGraw-Hill, 1992.
MLA (9th ed.) ZitazioaFitzgerald, A.E, et al. ELECTRIC MACHINERY. McGraw-Hill, 1992.
Kontuz: berrikusi erreferentzia hauek erabili aurretik.