LEIGH DAVID. (1998). ENCYCLOPAEDIA OF PRACTICAL MANAGEMENT TRAINING: GROUPS TRAINING. JAICO PUBLISHING HOUSE.
Cita Chicago (17th ed.)LEIGH DAVID. ENCYCLOPAEDIA OF PRACTICAL MANAGEMENT TRAINING: GROUPS TRAINING. NEW DELHI: JAICO PUBLISHING HOUSE, 1998.
Cita MLA (9th ed.)LEIGH DAVID. ENCYCLOPAEDIA OF PRACTICAL MANAGEMENT TRAINING: GROUPS TRAINING. JAICO PUBLISHING HOUSE, 1998.
Atenció: Aquestes cites poden no estar 100% correctes.