TY  - BOOK
AU  - Litecky,Charles R.
AU  - Davis,Gordon B.
TI  - Structured COBOL: a step by step approach 
SN  - 007015788X
PY  - 1987///
CY  - New York
PB  - McGraw-Hill Book
KW  - COBOL (Computer program language)
KW  - Structured programming
N1  - Rev. ed. of: Elementary structured COBOL/Gordon B. Davis, Margrethe H. Olsen, Charles R. Litecky
ER  -