TY  - BOOK
AU  -                                              
AU  - Tyler, Ralph W. 
ED  - National Society for the Study of Education 
TI  - Educational evaluation: new roles, new means: the Sixty-eighth yearbook of the National society for the study of education

                                                                                                                                        
U1  - 370 N2E2                                 
PY  - 1969///
CY  - Chicago
PB  - The University of Chicago press
KW  - Education
ER  -