@book{600,
	author = {Valkenburg, Mac E. Van.},
	title = {Network Analysis /},
	publisher = {Prentice Hall College Div,},
	year = {1974.},
	address = {[S.l.] :},
	edition = {3rd ed.},
	url = {http://10.10.170.122:8080/browse/book/25756}
}