TY  - GEN
AU  - Meehan, Diane
TI  - An Introduction to fourth generation languages / 
SN  - 0748704000
U1  - 005.13 
PY  - 1990///
CY  - Leckhampton
PB  - Stanley Thornes
KW  - Computer systems
KW  - Programming languages
N1  - Includes index
ER  -