CEI. (1991). GUIDELINES ON ELECTRICAL ENERGY CONSERVATION. C E I.
Chicago Style (17th ed.) CitationCEI. GUIDELINES ON ELECTRICAL ENERGY CONSERVATION. C E I, 1991.
MLA citiranjeCEI. GUIDELINES ON ELECTRICAL ENERGY CONSERVATION. C E I, 1991.
Opozorilo: Ti citati niso vedno 100% točni.