TY  - BOOK
AU  - Best,Ethel L.
TI  - A study of a change from 8 to 6 hours of work,
AV  - HD6093 .A35 no. 105
PY  - 1933///
CY  - Washington
PB  - U.S. Govt. print. off.
KW  - Hours of labor
KW  - Fatigue
N1  - At head of title: United States Department of labor. Frances Perkins, secretary. Women's bureau. Mary Anderson, director
ER  -