APA Style

Kotler, Philip, Armstrong, Gary. (1989). PRINCIPLES OF MARKETING, FOURTH EDITION (4th). New Jersey: Prentice-Hall, Inc..

Chicago Style

Kotler, Philip, Armstrong, Gary. PRINCIPLES OF MARKETING, FOURTH EDITION. 4th New Jersey: Prentice-Hall, Inc., 1989. Text.

MLA Style

Kotler, Philip, Armstrong, Gary. PRINCIPLES OF MARKETING, FOURTH EDITION. 4th New Jersey: Prentice-Hall, Inc., 1989. Text.

Turabian Style

Kotler, Philip, Armstrong, Gary. PRINCIPLES OF MARKETING, FOURTH EDITION. 4th New Jersey: Prentice-Hall, Inc., 1989. Print.