Gaya APA
Keegan, W, J.
(1989).
Global marketing management
(
4th ed.)
.
Englewood Cliffs, NJ:
Prentice Hall.
Gaya MLA
Keegan, Warren, J.
"Global marketing management".
4th ed.
Englewood Cliffs, NJ:
Prentice Hall,
1989.
Text.