APA (7th ed.) Citation

Luhmann, N. (1988). Neuere Entwicklungen in der Systemtheorie. Merkur, 42, 293-300.

Chicago Style (17th ed.) Citation

Luhmann, Niklas. "Neuere Entwicklungen in Der Systemtheorie." Merkur 42 (1988): 293-300.

MLA (8th ed.) Citation

Luhmann, Niklas. "Neuere Entwicklungen in Der Systemtheorie." Merkur, vol. 42, 1988, pp. 293-300.

Warning: These citations may not always be 100% accurate.