@book{51624,
	author = {Wang, C. H. and Liem, T. H.},
	title = {Sulphur deficiency},
	publisher = {IRI. Research Institute,},
	year = {1976},
	address = {New York :},
	note = {La biblioteca tiene: v.1 Development of sulphur deficiency as a limiting factor for rice production.- v.2 Sulphur requirements for rice production}
}