@book{1601,
	title = {Man's impact on the global environment},
	publisher = {MIT Press},
	year = {1970. },
	address = {Cambridge, Mass.},
	note = {Held to make preliminary studies for the 1972 United Nations Conference on the Human Environment. },
	url = {http://firstsearch.oclc.org/WebZ/DCARead?standardNoType=1&standardNo=0262690276:srcdbname=worldcat:fromExternal=true&sessionid=0}
}