APA (7th ed.) Citation

GREENBERG. (2004). CRM at the speed of light: Essential customer strategies for the 21st century (3rd. ed.). Mc-Graw Hill.

Chicago Style (17th ed.) Citation

GREENBERG. CRM at the Speed of Light: Essential Customer Strategies for the 21st Century. 3rd. ed. New York: Mc-Graw Hill, 2004.

MLA (9th ed.) Citation

GREENBERG. CRM at the Speed of Light: Essential Customer Strategies for the 21st Century. 3rd. ed. Mc-Graw Hill, 2004.