TY  - BOOK
AU  - Diricky Yo M I
AU  -  Jennergren L Peter
TI  - Systems analysis by multimedia methods :  with applications to economics and management
T2  - International series on applied systems analysis
U1  - X:89M, L92 
PY  - 1979///
CY  - Chishester
PB  - John Wiley      
KW  - ECONOMICS
ER  -