Cita APA (7th ed.)

Assael, H. (1990). Marketing: Principles & strategy (2nd ed.). Harcourt brace.

Cita Chicago (17th ed.)

Assael, Henry. Marketing: Principles & Strategy. 2nd ed. Philadelphia: Harcourt brace, 1990.

Cita MLA (9th ed.)

Assael, Henry. Marketing: Principles & Strategy. 2nd ed. Harcourt brace, 1990.