TY  - RPRT
A1  - Gibson, C.J.
A1  - Lennon, E.
T1  - Historical census statistics on the foreign-born population of the United States: 1850 to 1990
Y1  - 1999
PB  - U.S. Census Bureau Population Division
CY  - Washington, DC
T3  - Working paper 29

ER  -