Luhmann, N. Why does society describe itself as postmodern?: Niklas Luhmann. Observing complexity : systems theory and postmodernity.(2000).
Chicago-Zitierstil (17. Ausg.)Luhmann, Niklas. "Why Does Society Describe Itself as Postmodern?: Niklas Luhmann." Observing Complexity : Systems Theory and Postmodernity.(2000) .
MLA-Zitierstil (8. Ausg.)Luhmann, Niklas. "Why Does Society Describe Itself as Postmodern?: Niklas Luhmann." Observing Complexity : Systems Theory and Postmodernity.(2000), .
警告：这些引文格式不一定是100％准确.