TY  - BOOK
AU  - Espich,James E
TI  - Developing programmed instructional materials: a handbook for program writers 
AV  - 370.777 Es65
PY  - 1967///
CY  - Belmont, Calif
PB  - Fearon Pub
KW  - Programmed  instruction
KW  - Autorship
ER  -