TY  - BOOK
AU  - Johnson, David W
AU  - Johnson, Roger T
TI  - Assessing students in groups : promoting group responsibility and individual accountability
SN  - 9780761939474
U1  - 371.395 JOH 
PY  - 2004///
CY  - Thousand Oaks, CA
PB  - Corwin Press
KW  - Educational tests and measurements
ER  -