TY  - BOOK
AU  - Wirth, Niklaus.
TI  - Systematic Programming: An Introduction / 
SN  - 0-13-880369-2
U1  - Bv 
PY  - 1989///
CY  - New Jersey : 
PB  - Prentice-Hall Inc. , 
KW  - Systematic Programming
ER  -