Παραπομπή APA

(1950). Two-pole and earthing-pin plugs, socket-outlets and socket-outlet adaptors. London: British Standards Institution.

Παραπομπή Chicago Style

Two-pole and Earthing-pin Plugs, Socket-outlets and Socket-outlet Adaptors. London: British Standards Institution, 1950.

Παραπομπή MLA

Two-pole and Earthing-pin Plugs, Socket-outlets and Socket-outlet Adaptors. London: British Standards Institution, 1950.

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