TY  - BOOK
AU  - Niebel Benjamin W
TI  - Motion and time study
T2  - Irwin Series in Management
U1  - X:89M1, J5:L2 
PY  - 1972///
CY  - Illinois
PB  - Irwin          
KW  - Work Study
N1  - Appendix p 665-95
ER  -