TY  - BOOK
AU  - Block,James H., Anderson, Lorin W.
AU  - x
TI  - Mastery learning in classroom instruction: x
SN  - 0023110007
U1  - 371.102/B651m 
PY  - 1975///
CY  - New York ; Macmillan ; London
PB  - Collier Macmilan
KW  - Teaching
KW  - Lesson planning
N1  - Index
ER  -