00429nam a2200157Ia 4500008004100000020001500041082001800056100002300074245004800097260004300145300000800188650002000196653001300216653002000229700002200249170901s1980    xx            000 0 und d  a0803914296  a300.182bB70A  aBorgatta, Edgar F. 0aAggregate DatabAnalysis and Interpretation  aBeverly HillsbSage Publicationsc1980  a192  aSocial sciences  aResearch  aSocial sciences  aJackson, David J.