Schultz, M. (2013). Professional services marketing: How the best firms build premier brands, thriving lead generation engines, and cultures of business development success. John Wiley & Sons, Inc.
استشهاد بنمط شيكاغوSchultz, Mike. Professional Services Marketing: How the Best Firms Build Premier Brands, Thriving Lead Generation Engines, and Cultures of Business Development Success. John Wiley & Sons, Inc, 2013.
MLA استشهادSchultz, Mike. Professional Services Marketing: How the Best Firms Build Premier Brands, Thriving Lead Generation Engines, and Cultures of Business Development Success. John Wiley & Sons, Inc, 2013.
تحذير: قد لا تكون هذه الاستشهادات دائما دقيقة بنسبة 100%.