Shell International Petroleum Company, Ltd. Insulating oils for transformers and switchgear. Shell.
Cita Chicago Style (17a ed.)Shell International Petroleum Company, Ltd. Insulating Oils for Transformers and Switchgear. [London]: Shell.
Cita MLA (9a ed.)Shell International Petroleum Company, Ltd. Insulating Oils for Transformers and Switchgear. Shell.
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