Kotler, P., & Armstrong, G. (1999). Principles of marketing (9 ed.). Prentice Hall.
Чикаго-гийн эшлэл (17 дахь хэвлэлт)Kotler, Philip, ба Gray Armstrong. Principles of Marketing. 9 ed. London ; New York: Prentice Hall, 1999.
MLA -ийн эшлэл (9 дэх хэвлэлт)Kotler, Philip, ба Gray Armstrong. Principles of Marketing. 9 ed. Prentice Hall, 1999.