Tohutoro APA (7th ed.)
Luhmann, N., & Barrett, R. (2012). Theory of society. Stanford University Press.
Tohutoru Kātū Chicago (17th ed.)
Luhmann, Niklas, me Rhodes Barrett. Theory of Society. Stanford, Calif.: Stanford University Press, 2012.
Tohutoro MLA (9th ed.)
Luhmann, Niklas, me Rhodes Barrett. Theory of Society. Stanford University Press, 2012.
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