@book{5325,
	title = {Economic theory and exhaustible resources},
	publisher = {J. Nisbet ;},
	year = {1979. },
	address = {Welwyn [Eng.]},
	url = {http://firstsearch.oclc.org/WebZ/DCARead?standardNoType=1&standardNo=0521297613:srcdbname=worldcat:fromExternal=true&sessionid=0}
}