TY  - BOOK
ED  - International Labour Office.
TI  - Introduction to work study
SN  - 922101939X 
U1  - 65.015 UDC
PY  - 1979///
CY  - Geneva
PB  - International Labour Office
KW  - Work measurement
KW  - Methods engineering
N1  - Errata slip inserted; Bibliography: p. 439-441
ER  -