TY  - BOOK
AU  - Bancroft,Gertrude
ED  - Social Science Research Council U.S.
TI  - The American labor force: its growth and changing composition
T2  - The Census monograph series
AV  - HD5724 .B33
U1  - 331.112 
PY  - 1958///]
CY  - New York
PB  - Wiley
KW  - Labor supply
N1  - Includes bibliography
ER  -