Lua APA (7ú heag.)
Lucas, R. W. (2002). Customer service: Skills and concepts for success (2nd ed.). Glencoe/McGraw-Hill.
Lua i Stíl Chicago (17ú heag.)
Lucas, Robert W. Customer Service: Skills and Concepts for Success. 2nd ed. New York: Glencoe/McGraw-Hill, 2002.
Lua MLA (9ú heag.)
Lucas, Robert W. Customer Service: Skills and Concepts for Success. 2nd ed. Glencoe/McGraw-Hill, 2002.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.