Tracy, B. (2007). Crunch point: The 21 secrets to succeeding when it matters most. American Management Association.
Cita Chicago (17th ed.)Tracy, Brian. Crunch Point: The 21 Secrets to Succeeding When It Matters Most. New York: American Management Association, 2007.
Cita MLA (9th ed.)Tracy, Brian. Crunch Point: The 21 Secrets to Succeeding When It Matters Most. American Management Association, 2007.
Atenció: Aquestes cites poden no estar 100% correctes.