Fragasso Phil. (2008). Marketing for Rainmakers: 52 Rules of Engagement to Attract and Retain Customers for Life. American: John Wiley & Sons.
Chicago Style aipamenaFragasso Phil. Marketing for Rainmakers: 52 Rules of Engagement to Attract and Retain Customers for Life. American: John Wiley & Sons, 2008.
MLA aipamenaFragasso Phil. Marketing for Rainmakers: 52 Rules of Engagement to Attract and Retain Customers for Life. American: John Wiley & Sons, 2008.
Kontuz: berrikusi erreferentzia hauek erabili aurretik.