Columbia subject headings:
Luhmann, Niklas, 1927-1998.
Social systems.
System theory.
Harvard subject headings:
Autopoiesis.
Luhmann, Niklas, 1927-1998
Nature--Effect of human beings on
Social systems.
System theory
Princeton subject headings:
Autopoiesis.
Luhmann, Niklas, 1927-1998.
Nature--Effect of human beings on.
System theory.