TY  - BOOK
AU  - Fox,Karl August
TI  - Social indicators and social theory: elements of an operational system 
SN  - 0471270601
PY  - 1974///
CY  - New York
PB  - Wiley
KW  - Social sciences
KW  - Methodology
KW  - Social indicators
KW  - System theory
N1  - 'A Wiley-Interscience publication.'; Includes bibliographical references
ER  -