TY  - BOOK
AU  - Kumar,J Prasanth
AU  - Wiley,David E
AU  - Wittrock,Merlin C
TI  - The evaluation of instruction : : issues and problems 
U1  - 371.3 
PY  - 1970///
CY  - New York, : 
PB  - Holt, Rinehart and Winston
KW  - Educacion -- Investigaciones
ER  -