TY - BOOK AU - Peters,David A. ED - National Extension College. ED - Institute of Supervisory Management. TI - Principles of supervision T2 - Longmans' supervisory series 1 AV - HF5549 .P4529 U1 - 658.302 PY - 1967/// CY - London PB - Longmans KW - Supervision of employees N1 - Bibliography: p. 81 ER -