Cita APA (7th ed.)
Performance Associates, Inc, & ebrary, Inc. (2007). Delivering knock your socks off service (4th ed.). AMACOM, American Management Association.
Cita Chicago (17th ed.)
Performance Associates, Inc, i Inc ebrary. Delivering Knock Your Socks off Service. 4th ed. New York: AMACOM, American Management Association, 2007.
Cita MLA (9th ed.)
Performance Associates, Inc, i Inc ebrary. Delivering Knock Your Socks off Service. 4th ed. AMACOM, American Management Association, 2007.
Atenció: Aquestes cites poden no estar 100% correctes.