TY  - BOOK
AU  - Mehrens, William A.
AU  - Mehrens, William A.
TI  - Measurement and evaluation in education and psychology
SN  - 0 03 086323 6
U1  - 371.26 
PY  - 1973///
CY  - New York
PB  - Holt, Rinehart and Winston
ER  -