TY  - BOOK
AU  - Luhmann, Niklas,
TI  - Introduction to systems theory
SN  - 9780745645728
U1  - 301 LUH 
PY  - 2013///
CY  - UK 
PB  - : Polity Press , 
KW  - Social Science
KW  - Sociology & Anthopology
KW  - System theory
KW  - Social systems
KW  - Niklas Luhmann; Dirk Baecker; Peter Gilgen
KW  - Introduction to systems theory
ER  -