TY  - BOOK
AU  - Henry,Nelson B.
ED  - National Society for the Study of Education.
TI  - The measurement of understanding
T2  - National society for the study of education. 45th Yearbook, pt. 1
U1  - 153 
PY  - 1946///
CY  - Chicago, Ill.
PB  - The University of Chicago press
KW  - Learning, Psychology of
KW  - Teaching
ER  -