"Originally published in German under the title Die Religion der Gesellschaft."
Religion as a form of meaning
Coding
The function of religion
The contingency formula "God"
The differentiation of religious communication
Religious organizations
The evolution of religion
Secularization
Self-description.
A systems theory of religion by Niklas Luhmann. ISBN 9780804743297. Published by Stanford University Press in 2013. Publication and catalogue information, links to buy online and reader comments.