TY  - BOOK
AU  - Popkin,Gary S.
TI  - Comprehensive structured cobol
SN  - 053491781X
U1  - QA/76.73.C25 
CY  - Boston
PB  - PWS-KENT Pun. Co.
KW  - COBOL (Computer program language).
KW  - Structured programming.
ER  -