एपीए उद्धरण

Tschohl, J., & Franzmeier, S. Achieving excellence through customer service.

शिकागो स्टाइल उद्धरण

Tschohl, John, और Steve Franzmeier. Achieving Excellence Through Customer Service. :.

एमएलए उद्धरण

Tschohl, John, और Steve Franzmeier. Achieving Excellence Through Customer Service.