MLA

Benioff, Marc, and Carlye Adler. Behind the Cloud : the Untold Story of How Salesforce.com Went From Idea to Billion-dollar Company and Revolutionized an Industry. San Francisco: Jossey-Bass, 2009.

APA

Benioff, M., & Adler, C. (2009). Behind the cloud : the untold story of how salesforce.com went from idea to billion-dollar company and revolutionized an industry. San Francisco: Jossey-Bass.

Chicago

Benioff, Marc, and Carlye Adler. Behind the Cloud: The Untold Story of How Salesforce.com Went From Idea to Billion-Dollar Company and Revolutionized an Industry. San Francisco: Jossey-Bass, 2009.