एपीए उद्धरण

Training in Technology. (1999). Direct Current Technology. Germany: System Technik.

शिकागो स्टाइल उद्धरण

Training in Technology. Direct Current Technology. Germany: System Technik, 1999.

एमएलए उद्धरण

Training in Technology. Direct Current Technology. Germany: System Technik, 1999.