एपीए उद्धरण

Lucas, R. W. (2012). Customer service: Building successful skills for the twenty - first century (3rd ed.). Tata McGraw Hill.

शिकागो स्टाइल उद्धरण

Lucas, Robert W. Customer Service: Building Successful Skills for the Twenty - First Century. 3rd ed. New Delhi: Tata McGraw Hill, 2012.

एमएलए उद्धरण

Lucas, Robert W. Customer Service: Building Successful Skills for the Twenty - First Century. 3rd ed. Tata McGraw Hill, 2012.