Installation Technology, & Protective Engineering. (2005). Electric Safety technolory(sách photo) (Tái bản lần thứ 2.). Germany: Altdorfer Strasse.
शिकागो स्टाइल उद्धरणInstallation Technology, और Protective Engineering. Electric Safety Technolory(sách Photo). Tái bản lần thứ 2. Germany: Altdorfer Strasse, 2005.
एमएलए उद्धरणInstallation Technology, और Protective Engineering. Electric Safety Technolory(sách Photo). Tái bản lần thứ 2. Germany: Altdorfer Strasse, 2005.
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