TY  - BOOK
AU  - Little,Roderick J.A.
AU  - Rubin,Donald B.
TI  - Statistical analysis with missing data
SN  - 0471802549 
AV  - QA276 .L57 1987
PY  - 1987///
CY  - New York
PB  - Wiley
KW  - Mathematical statistics
KW  - Missing observations (Statistics)
ER  -