TY  - BOOK
AU  - Barnes,Ralph Mosser
TI  - Motion and time study
U1  - 658.542 
PY  - 1949/// [Reprint 1956]
CY  - New York
PB  - J. Wiley
KW  - Motion study
KW  - Time study
N1  - Bibliography: p. 541-548 & Includes Index
ER  -