TY  - BOOK
AU  - Quick,Joseph H
AU  - Duncan,James H
AU  - Malcolm,James A. 
TI  - Work Factor Time Standards : : Measerment of Manual and Mental Work
U1  - 331.257 
PY  - 1962///
CY  - New York: 
PB  - McGraw-Hill, 
KW  - economics
KW  - Mental Work
KW  - Simo Factor
KW  - Work Factor
ER  -