TY  - BOOK
AU  - Stern, Nancy
AU  - Stern, Robert A.
TI  - Structured cobol programming 
U1  - 005.1336 21st ed.
PY  - 1985///
CY  - New York
PB  - John Wiley and Sons
KW  - COBOL (Computer programming language)
KW  - Structured programming
ER  -