TY  - BOOK
AU  - Hughes,Joan K.
TI  - PL/I structured programming
SN  - 0471019089
PY  - 1979///
CY  - New York
PB  - Wiley
KW  - PL/I (Computer program language)
N1  - First ed. published in 1973 under title: PL/I programming; Includes index
ER  -