Cita APA (7a ed.)

McMakin, T., & Parks, J. (2021). Never say sell: How the world's best consulting and professional services firms expand client relationships. John Wiley & Sons, Inc..

Cita Chicago Style (17a ed.)

McMakin, Tom, y Jacob Parks. Never Say Sell: How the World's Best Consulting and Professional Services Firms Expand Client Relationships. Hoboken, New Jersey: John Wiley & Sons, Inc., 2021.

Cita MLA (8a ed.)

McMakin, Tom, y Jacob Parks. Never Say Sell: How the World's Best Consulting and Professional Services Firms Expand Client Relationships. John Wiley & Sons, Inc., 2021.