TY  - BOOK
AU  - Torshen,Kay Pomerance
TI  - The mastery approach to competency-based education
T2  - Educational psychology
SN  - 012696050X
PY  - 1977///
CY  - New York
PB  - Academic Press
KW  - Educational psychology
KW  - Individualized instruction
KW  - Grading and marking (Students)
N1  - Includes index; Bibliography : p. 193-224
ER  -