@book{270099,
	author = {Borch, Christian. and ProQuest (Firm)},
	title = {Niklas Luhmann},
	publisher = {Routledge,},
	year = {2011.},
	series = {Key sociologists},
	address = {New York :},
	url = {https://ebookcentral.proquest.com/lib/kuct-ebooks/detail.action?docID=683939}
}