TY  - BOOK
AU  - Ellis, David O
AU  - 
TI  - Systems philosophy
U1  - 62.004 
PY  - 1962///
CY  - New Jersey
PB  - Prentice-Hall of India
KW  - Systems engineering
KW  - systems philosophy
KW  - Systems analysis
KW  - systems modelling
ER  -