TY  - BOOK
AU  - Crawford, Marshal A.
AU  - Grauer, Robert T.
TI  - The COBOL environment
T2  - Prentice-Hall software series
SN  - 0131393944
U1  - 005.1336 21st ed.
PY  - 1979///
CY  - New Jersey
PB  - Prentice-Hall
KW  - COBOL (Computer program language)
ER  -