TY  - BOOK
AU  - Smithson Michael
TI  - Fuzzy set analysis for behavioural and social sciences
SN  - 0-387-96431-2
U1  - 511.32 
PY  - 1987///
CY  - New York
PB  - Springer-Verlag
KW  - Fuzzy sets
KW  - Set theory
ER  -