एपीए उद्धरण

Lucas, R. W. (2005). Customer service: Building Successful Skills for the Twenty-First Century. New York: McGraw - Hill.

शिकागो स्टाइल उद्धरण

Lucas, Robert W. Customer Service: Building Successful Skills for the Twenty-First Century. New York: McGraw - Hill, 2005.

एमएलए उद्धरण

Lucas, Robert W. Customer Service: Building Successful Skills for the Twenty-First Century. New York: McGraw - Hill, 2005.