TY  - BOOK
A1  - Ruggles, S.
A1  - Alexander, J.T.
A1  - Genadek, K.
A1  - Goeken, R.
A1  - Schroeder, M.B.
A1  - Sobek, M.
T1  - Integrated Public Use Microdata Series: Version 5.0 
Y1  - 2010
UR  - http://www.ipums.org/
CY  - Minneapolis
PB  - University of Minnesota

ER  -