@book{208424,
	author = {UNEP. Division of Early Warning and Assessment. GEO Section},
	title = {GEO year book.},
	publisher = {Produced by Division of Early Warning and Assessment (DEWA), UNEP},
	year = {2006},
	address = {Nairobi},
	note = {UNEP job no.: DEW/0773/ NA.},
	url = {http://www.unep.org/geo/yearbook/yb2006/PDF/Complete_pdf_GYB_2006.pdf}
}