TY  - BOOK
ED  - United States.
TI  - Wages and hours of labor in the Portland cement industry, 1929 ... January, 1931
AV  - HD8051 .A62 no. 525
PY  - 1931///
CY  - Washington
PB  - U.S. Govt. Print. Off.
KW  - Wages
KW  - United States
KW  - Hours of labor
KW  - Portland cement
N1  - At head of title: United States Department of Labor. W.N. Doak, secretary. Bureau of Labor Statistics. Ethelbert Stewart, commissioner; Issued also as House doc. 579, 71st Cong., 3 sess
ER  -