Clifford, C. (2013). Let's close a deal: Turn contacts into paying customers for your company, product, service or cause (1st edition.). John Wiley & Sons.
Cita Chicago Style (17a ed.)Clifford, Christine. Let's Close a Deal: Turn Contacts into Paying Customers for Your Company, Product, Service or Cause. 1st edition. Hoboken, N.J.: John Wiley & Sons, 2013.
Cita MLA (9a ed.)Clifford, Christine. Let's Close a Deal: Turn Contacts into Paying Customers for Your Company, Product, Service or Cause. 1st edition. John Wiley & Sons, 2013.
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