TY  - BOOK
AU  - Breen Richard
TI  - Regression models censored, sample selected or truncated data. No. 111
SN  - 0803957106
U1  - Sigma:(B28), N6-111 
PY  - 1996///
CY  - London
PB  - Sage Publications UK      
KW  -  PROBABILITIES
KW  - SOCIAL SCIENCES
ER  -