@book{18668,
	author = {Unesco Symposium on Methods in Agroclimatology, and University of Reading.},
	title = {Agroclimatological methods :},
	publisher = {Unesco,},
	year = {1968.},
	series = {Natural resources research. Recherches sur les ressources naturelles ; 7},
	address = {Paris :},
	note = {English and French.}
}