TY  - BOOK
AU  - Hudson,Keith
TI  - Introducing CAL: a practical guide to writing computer-assisted learning programs 
T2  - Chapman and Hall computing
SN  - 0412262304
PY  - 1984///
CY  - London
PB  - Chapman & Hall
KW  - Computer-assisted instruction
KW  - Electronic digital computers
KW  - Programming
N1  - Includes Bibliographical references (p. 166-168) and index
ER  -