Nunziata, J. (2007). Spiritual selling: How to use the attractor sales system to create abundance in your business. John Wiley & Sons.
Chicago-tyylinen lähdeviittausNunziata, Joe. Spiritual Selling: How to Use the Attractor Sales System to Create Abundance in Your Business. John Wiley & Sons, 2007.
MLA-viiteNunziata, Joe. Spiritual Selling: How to Use the Attractor Sales System to Create Abundance in Your Business. John Wiley & Sons, 2007.
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