TY  - BOOK
AU  - Singleton W T
TI  - Measurement of at work: an appraisal of physiological and psychological criteria in man-machine systems
U1  - 620.8 
PY  - 1971///
CY  - London
PB  - Taylor & Francis
KW  - Human engineering
N1  - Based on papers presented to a symposium held in Amsterdam,Sept.1969
ER  -