APA Style
Kotler, Philip, Armstrong, Gary. (1990).
Principles of Marketing / Philip Kotler and Gary Armstrong (6th ed.).
New Jersey:
Prentice Hall.
Chicago Style
Kotler, Philip, Armstrong, Gary.
Principles of Marketing / Philip Kotler and Gary Armstrong.
6th ed.
New Jersey:
Prentice Hall,
1990.
Text.
MLA Style
Kotler, Philip, Armstrong, Gary.
Principles of Marketing / Philip Kotler and Gary Armstrong.
6th ed.
New Jersey:
Prentice Hall,
1990.
Text.
Turabian Style
Kotler, Philip, Armstrong, Gary.
Principles of Marketing / Philip Kotler and Gary Armstrong.
6th ed.
New Jersey:
Prentice Hall,
1990.
Print.