Social systems.

[NT 60487] Overview

[NT 60478] Works:	2 [NT 60520] works in 2 [NT 60521] publications in 1 [NT 60522] languages

[NT 60480] Titles

Social organizations : interaction inside, outside, and between organizations [NT 59711] by: Ahrne, Gan ([NT 1579] Language materials, printed)

Luhmann observed : radical theoretical encounters [NT 59711] by: Philippopoulos-Mihalopoulos, Andreas.; Luhmann, Niklas (1927-1998.); La Cour, Anders. ([NT 8598] Electronic resources)