TY  - BOOK
AU  - Najim N. Ed.
AU  -  Abdel-Fattah M. Ed.
TI  - System approach for development
SN  - 0080256708
U1  - X:89M.1(Y:4)p;N80, M0 
PY  - 1980///
CY  - Oxford
PB  - International Federation      
ER  -