Tohutoro APA (7th ed.)

Kotler, P. (1980). Principles of marketing. Prentice-Hall.

Tohutoru Kātū Chicago (17th ed.)

Kotler, Philip. Principles of Marketing. Englewood Cliffs: Prentice-Hall, 1980.

Tohutoro MLA (9th ed.)

Kotler, Philip. Principles of Marketing. Prentice-Hall, 1980.