TY  - BOOK
AU  - Graybill, Franklin, A.
TI  - An Introduction to Linear Statistical Models
U1  - 311.018 GRA 
PY  - 1961///
CY  - New York
PB  - Mc Graw- Hill Book Company, INC
KW  - Statistics, Polynomial or Curvilinear Models, Some Additional Topics about Model 4
ER  -