TY  - BOOK
AU  - Mercer,Cecil D.
AU  - Mercer,Ann R.
AU  - Bott,Deborah A.
TI  - Self-correcting learning materials for the classroom
PY  - 1984///
CY  - Columbus
PB  - C. E. Merrill Pub. Co.
KW  - Programmed instruction
N1  - Bibliography: p. 247
ER  -