TY  - BOOK
AU  - Cavallo,Roger E.
TI  - The role of systems methodology in social science research
SN  - 0898380057 :
U1  - 300.18 
PY  - 1979///
CY  - Boston
PB  - M. Nijhoff
KW  - Social sciences
KW  - Research
KW  - Methodology
N1  - Includes index
ER  -