TY  - BOOK
AU  - Freund John E
TI  - Mathematical statistics
T2  - Prentice-Hall Mathematics Series
U1  - "B28, K2;1/TD3" 
PY  - 1962///
CY  - Englewood
PB  - cliffs Prentice-Hall New Jersey    
N1  - Bibliography at the end of each chapter; Appendices: p 351-352
ER  -