Gaya APA

POWELL, R.G. (1990). Electromagnetism . London: Macmillan Education Ltd.

Gaya Chicago

POWELL, R.G. Electromagnetism. London: Macmillan Education Ltd, 1990. .

Gaya MLA

POWELL, R.G. Electromagnetism. London: Macmillan Education Ltd, 1990. .

Gaya Turabian

POWELL, R.G. Electromagnetism. London: Macmillan Education Ltd, 1990. .