(1995). Survey of Income and Program Participation (SIPP) 1990 Full Panel Research File [Waves 1-8 Longitudinal Microdata File] United States Department of Commerce. Bureau of the Census. [electronic resource].
Chicago (17e ed.) BronvermeldingSurvey of Income and Program Participation (SIPP) 1990 Full Panel Research File [Waves 1-8 Longitudinal Microdata File] United States Department of Commerce. Bureau of the Census. [electronic Resource]. 1995.
MLA (9e ed.) BronvermeldingSurvey of Income and Program Participation (SIPP) 1990 Full Panel Research File [Waves 1-8 Longitudinal Microdata File] United States Department of Commerce. Bureau of the Census. [electronic Resource]. 1995.
Let op: Deze citaties zijn niet altijd 100% accuraat.