Christensen, M. (2008). Be a recruiting superstar: The fast track to network marketing millions. American Management Association.
Cita Chicago (17th ed.)Christensen, Mary. Be a Recruiting Superstar: The Fast Track to Network Marketing Millions. New York: American Management Association, 2008.
Cita MLA (9th ed.)Christensen, Mary. Be a Recruiting Superstar: The Fast Track to Network Marketing Millions. American Management Association, 2008.
Atenció: Aquestes cites poden no estar 100% correctes.