TY  - BOOK
AU  - Mundel,Marvin E.
TI  - Motion and time study: principles and practices 
SN  - 0136030351
U1  - 658.542 
PY  - 1960///]
CY  - Englewood Cliffs, N.J.
PB  - Prentice-Hall
KW  - Motion study
KW  - Time study
N1  - Bibliography: p. 596-599
ER  -