APA Style
Kotler, Philip, Armstrong, Gary. (1994).
Principles of marketing (6th edition).
London:
Prentice Hall International.
Chicago Style
Kotler, Philip, Armstrong, Gary.
Principles of marketing.
6th edition
London:
Prentice Hall International,
1994.
Text.
MLA Style
Kotler, Philip, Armstrong, Gary.
Principles of marketing.
6th edition
London:
Prentice Hall International,
1994.
Text.
Turabian Style
Kotler, Philip, Armstrong, Gary.
Principles of marketing.
6th edition
London:
Prentice Hall International,
1994.
Print.