TY  - BOOK
AU  - Smith,Wendell Irving
AU  - Moore,John William
TI  - Programmed learning: theory and research: an enduring problem in psychology 
T2  - An Insight book,
U1  - 371.3944 
PY  - 1962///
CY  - London.
PB  - Van Nostrand
KW  - Programmed instruction
ER  -