TY  - BOOK
AU  - Borgatta, Edgar F.
AU  - Jackson, David J.
TI  - Aggregate Data: Analysis and Interpretation
SN  - 0803914296
U1  - 300.182 
PY  - 1980///
CY  - Beverly Hills
PB  - Sage Publications
KW  - Social sciences
KW  - Research
ER  -