TY  - BOOK
AU  - Cavallo, Roger E.
TI  - Role of systems methodology in social science research
T2  - Frontoers in systems Research ,
U1  - 300.18 
PY  - 1979///
CY  - The Hague
PB  - Martinus Nijhoff Publishing
KW  - Social sciences
KW  - Generative systems
KW  - Structural derivations
ER  -