@book{1604,
	title = {Man's impact on the global environment :},
	publisher = {The Massachusetts Institute of Technology},
	year = {1970. },
	address = {[Cambridge, Mass.]},
	url = {http://firstsearch.oclc.org/WebZ/DCARead?standardNoType=1&standardNo=0262690276:srcdbname=worldcat:fromExternal=true&sessionid=0}
}