Cita APA (7th ed.)

Kotler, P. (1984). Marketing essentials. Prentice-Hall.

Cita Chicago (17th ed.)

Kotler, Philip. Marketing Essentials. .Englewood Cliffs, N.J: Prentice-Hall, 1984.

Cita MLA (9th ed.)

Kotler, Philip. Marketing Essentials. Prentice-Hall, 1984.