TY  - BOOK
AU  - Ashley, Ruth.
TI  - Structured COBOL
T2  - Wiley Self Teaching Guides
SN  - 0471053627
U1  - 001.6424 
PY  - 1980///
CY  - New York
PB  - Wiley
KW  - COBOL - Computer program language
KW  - Structured programming - Programmed instruction
ER  -