Fragasso, P. (2008). Marketing for rainmakers: 52 rules of engagement to attract and retain customers for life. John Wiley & Sons.
استشهاد بنمط شيكاغوFragasso, Philip. Marketing for Rainmakers: 52 Rules of Engagement to Attract and Retain Customers for Life. John Wiley & Sons, 2008.
MLA استشهادFragasso, Philip. Marketing for Rainmakers: 52 Rules of Engagement to Attract and Retain Customers for Life. John Wiley & Sons, 2008.
تحذير: قد لا تكون هذه الاستشهادات دائما دقيقة بنسبة 100%.