00586nam a2200229 4500 DLU020001014 ##1/14/1999 0-87912-064-9 eng 658.382 Sup Supervisors Safety Manual : Better production without injury and Waste from Accidents Chicago, Illinois : National Safety Council, 1978 X, 426 tr.; 23 cm. 8000 DLU False Administrator G A SH Thư viện Trường Đại học Đà Lạt