Uppal, S. L. (1998). Electrical power: Generation, transmission, distribution, switchgear and protection, utilization of electrical energy and electric traction in M.K.S. units. Khanna.
Trích dẫn kiểu ChicagoUppal, S. L. Electrical Power: Generation, Transmission, Distribution, Switchgear and Protection, Utilization of Electrical Energy and Electric Traction in M.K.S. Units. New Delhi: Khanna, 1998.
Trích dẫn MLAUppal, S. L. Electrical Power: Generation, Transmission, Distribution, Switchgear and Protection, Utilization of Electrical Energy and Electric Traction in M.K.S. Units. Khanna, 1998.
Cảnh báo: Các trích dẫn này có thể không phải lúc nào cũng chính xác 100%.