WARD, M. (1997). 50 ESSENTIAL MANAGEMENT TECHNIQUES. JAICO PUBLISHING HOUSE.
Cita Chicago (17th ed.)WARD, MICHAEL. 50 ESSENTIAL MANAGEMENT TECHNIQUES. MUMBAI: JAICO PUBLISHING HOUSE, 1997.
Cita MLA (9th ed.)WARD, MICHAEL. 50 ESSENTIAL MANAGEMENT TECHNIQUES. JAICO PUBLISHING HOUSE, 1997.
Atenció: Aquestes cites poden no estar 100% correctes.