@book{3235,
	title = {Using mathematics in economics},
	publisher = {Addison-Wesley},
	year = {1999. },
	address = {Essex, England ;},
	edition = {2nd ed.},
	url = {http://firstsearch.oclc.org/WebZ/DCARead?standardNoType=1&standardNo=0201360500:srcdbname=worldcat:fromExternal=true&sessionid=0}
}