TY  - BOOK
AU  - Hughes J K
TI  - PL/1 structured programming
SN  - 0-471-01908-9
U1  - 005.133 
PY  - 1979///
CY  - N Y
PB  - Wiley
KW  - Computer science
KW  - PL/1
KW  - Programming language
ER  -