(1955). The Canadian Standards Association Approvals System: Information for U.K. Manufacturers exporting electrically-operated equipment to Canada (2nd ed.). London: British Standards Institution. B.S.I./CSA Approvals Agency..
Παραπομπή Chicago StyleThe Canadian Standards Association Approvals System: Information for U.K. Manufacturers Exporting Electrically-operated Equipment to Canada. 2nd ed. London: British Standards Institution. B.S.I./CSA Approvals Agency., 1955.
Παραπομπή MLAThe Canadian Standards Association Approvals System: Information for U.K. Manufacturers Exporting Electrically-operated Equipment to Canada. 2nd ed. London: British Standards Institution. B.S.I./CSA Approvals Agency., 1955.
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