The electrician annual tables of electricity undertakings of the world.

MLA

The Electrician Annual Tables of Electricity Undertakings of the World. 58th ed. London: Benn brothers limited, 1939.

APA

(1939). The electrician annual tables of electricity undertakings of the world. 58th ed. London: Benn brothers limited.

Chicago

The Electrician Annual Tables of Electricity Undertakings of the World. 58th ed. London: Benn brothers limited, 1939.