00622pamaa2200193 4500 0000012568 20190805090000.0 0071144641 9780256208054 (pbk.) 658.302 CER HF5549.12.C42 1997 Certo, Samuel C. author Supervision : quality, diversity and technology Samuel Certo. Second edition. Chicago: Irwin, 1997. xxxi, 623 pages: color illustrations; 26 cm. Originally published: Supervision: quality and diversity through leadership Supervision of employees