@techreport{Ruggles2010,
author = {Ruggles, S.J. and Alexander, J.T. and Genadek, K. and Goeken, R. and Schroeder, M.B. and Sobek, M. },
year = {2010},
address = {Minnesota Population Center, University of Minnesota},
institution = {Integrated public use microdata series: Version 5.0 [machine-readable database]},
}