Rubino, J. (2006). 15 secrets every network marketer must know: Essential elements and skills required to achieve 6- & 7-figure success in network marketing. John Wiley & Sons.
استشهاد بنمط شيكاغوRubino, Joe. 15 Secrets Every Network Marketer Must Know: Essential Elements and Skills Required to Achieve 6- & 7-figure Success in Network Marketing. John Wiley & Sons, 2006.
MLA استشهادRubino, Joe. 15 Secrets Every Network Marketer Must Know: Essential Elements and Skills Required to Achieve 6- & 7-figure Success in Network Marketing. John Wiley & Sons, 2006.
تحذير: قد لا تكون هذه الاستشهادات دائما دقيقة بنسبة 100%.