TY  - BOOK
AU  - Atherton,Roy
TI  - Structured programming with comal
SN  - 085312423X
U1  - QA/76.73.C64 
PY  - 1982///
CY  - West Sussex
PB  - Ellis Horwood Ltd.
KW  - COMAL (computer program language)
KW  - Structured programming.
ER  -