TY  - BOOK
AU  - Rapp, M. L.
AU  - Root, J. G. 
AU  - Sumner, G.
TI  - Some considerations in the experimental design and evaluation of educational innovations
U1  - RC 1970/614 
PY  - 1970///
CY  - Santa Monica, California
PB  - Rand Corporation
KW  - Educational innovations
KW  - Decision making
ER  -