Godin, Seth. Permission marketing turning strangers into friends, and friends into customers Seth Godin. - New York Simon & Schuster c1999. - 255 p. 20 cm. Includes index. ISBN: 0684856360 LCCN: 98050352 Subjects--Topical Terms: Relationship marketing. LC Class. No.: HF5415.55 / .G63 1999 Dewey Class. No.: 658.8