TY  - BOOK
AU  - Pocztar,Jerry
AU  - 
TI  - The theory and practice of programmed instruction
U1  - 371.3/POT 
PY  - 0000///Unesco
PY  - 1972///
CY  - Paris
KW  - Teaching
N1  - Includes index and Bibliography and Glossary.
ER  -