@book{17994,
	author = {Knowles, Dudley},
	title = {Political obligation},
	publisher = {Routledge,},
	year = {2010},
	series = {Routledge contemporary political philosophy},
	address = {London ;},
	note = {Description based on print version record},
	url = {http://www.netlibrary.com.libraryumpsa.idm.oclc.org/urlapi.asp?action=summary&v=1&bookid=289854}
}