TY  - BOOK
AU  - Retherford, Robert D.,
AU  - Choe, Minja Kim,
TI  - Statistical models for causal analysis
SN  - 0471558028
AV  - QA278 R477
PY  - 1993///
CY  - New York
PB  - J. Wiley
KW  - Análisis multivariante
N1  - A Wiley-Interscience publication
ER  -