Penggayaan APA
LUCAS, Robert W.. (2009).
Customer service : (4th ed.).
Boston:
McGraw Hill.
Chicago Style
LUCAS, Robert W..
Customer service :.
4th ed.
Boston:
McGraw Hill,
2009.
Buku.
MLA Style
LUCAS, Robert W..
Customer service :.
4th ed.
Boston:
McGraw Hill,
2009.
Buku.
Turabian Style
LUCAS, Robert W..
Customer service :.
4th ed.
Boston:
McGraw Hill,
2009.
Buku.