DEY B R. (1988). QUALITY CIRCLES CONCEPTS AND PRACTICES. MACMILLAN.
Cita Chicago (17th ed.)DEY B R. QUALITY CIRCLES CONCEPTS AND PRACTICES. DELHI: MACMILLAN, 1988.
Cita MLA (9th ed.)DEY B R. QUALITY CIRCLES CONCEPTS AND PRACTICES. MACMILLAN, 1988.
Atenció: Aquestes cites poden no estar 100% correctes.