Cita APA (7th ed.)

Godin, S. (1999). Permission marketing: Turning strangers into friends, and friends into customers. Simon & Schuster.

Cita Chicago (17th ed.)

Godin, Seth. Permission Marketing: Turning Strangers into Friends, and Friends into Customers. New York: Simon & Schuster, 1999.

Cita MLA (8th ed.)

Godin, Seth. Permission Marketing: Turning Strangers into Friends, and Friends into Customers. Simon & Schuster, 1999.