TY  - BOOK
AU  - Liu, Xiufeng
TI  - Essentials of science classroom : : assessment 
SN  - 9781412961011
AV  - 507.1 L74e 
PY  - 2010///
CY  - Thousands Oaks, CA
PB  - SAGE
KW  - Science
KW  - Study and teaching
KW  - Evaluation
N1  - Includes index and glossary
ER  -