Columbia subject headings:
Luhmann, Niklas, 1927-1998.
Social structure.
Sociology--Philosophy.
Weber, Max, 1864-1920.
Harvard subject headings:
Luhmann, Niklas, 1927-1998
Social structure.
Sociology--Philosophy
Weber, Max, 1864-1920.
Princeton subject headings:
Luhmann, Niklas, 1927-1998.
Social structure.
Sociology--Philosophy.
Weber, Max, 1864-1920.